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GDS C1 Instruction Manual

Protector 8/16 channel controller
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INSTRUCTION MANUAL
MODEL C1 PROTECTOR 8/16 CHANNEL CONTROLLER
(Revision 4.6 – Firmware 6.03 & later, including Wireless Setup)
Warning:
Read & understand contents of this manual prior to operation. Failure to do so
could result in serious injury or death.
P/N 1200-0620-46
GDS Corporation
1245 Butler Road League City, Texas
77573
(409) 927-2980 (409) 927-4180 (Fax) www.gdscorp.com

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  • Page 1 INSTRUCTION MANUAL MODEL C1 PROTECTOR 8/16 CHANNEL CONTROLLER (Revision 4.6 – Firmware 6.03 & later, including Wireless Setup) Warning: Read & understand contents of this manual prior to operation. Failure to do so could result in serious injury or death.

  • Page 3: Table Of Contents

    MASTER PORT RADIO SETUP MENU ..............18 2.3.5 EIGHT / SIXTEEN CHANNEL MODES ............... 19 2.3.6 SENSOR INFORMATION ................... 19 AUTHORIZATION MODE ................. 20 LCD CONTRAST ADJUSTMENT ..............20 P/N 1200-0620-46 GDS Corporation 1245 Butler Road League City, Texas 77573 (409) 927-2980 (409) 927-4180 (Fax) www.gdscorp.com...
  • Page 4 C1SS NEMA 4X WALL MT 316 STAINLESS STEEL ENCLOSURE ....42 C1XP NEMA 7 EXPLOSION-PROOF WALL MOUNT ENCLOSURE ..... 42 C1 MAIN I/O & OPTION PCB FOOTPRINT DIMENSIONS ......43 SECTION 7 ......................45 ADDING THE 10-0288 RADIO MODEM “WIRELESS” OPTION ....45 10-0288 RADIO SETUP MENU ................

  • Page 6: Section 1

    C1 Controller Users Manual Revision 4.6 SECTION 1 IMPORTANT SAFETY ISSUES The following symbols are used in this manual to alert the user of important instrument operating issues: This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions.

  • Page 7: General Description

    Modbus® RTU master RS-485 port. A Modbus RTU slave RS-485 port is also standard for sending data to PC’s, PLC’s, DCS’s, or even other C1 Controllers. Options such as analog I/O and discrete relays for each alarm are easily added to the addressable I C bus.

  • Page 8: Trend Screen

    1.1.1 TREND SCREEN The C1 Trend screen shown in Figure 2.0 displays a 24 hour trend of input data for the channel selected. Horizontal tic marks are each hour and vertical tic marks are each 10% of full scale. Dashed lines indicate alarm levels. The graphic LCD is 240 pixels wide so each pixel represents 1/10 hour, or 6 minutes worth of data.

  • Page 9: Specifications

    * A slide switch on the front of the power supply selects AC input range. The 10-0172 150 watt power supply (Figure 3.8) is for powering the C1 and up to 16 detectors. A minimum of 5 watts per channel is available for powering of external transmitters.

  • Page 10: Non-Intrusive Magnetic Keypad

    SECTION 2 2.0 BASIC OPERATION The C1 offers 3 graphic screens for viewing monitored data and a Set-Up menu screen for operator interface to configuration menus. They are shown below in Figure 2.0. The Bar Graphs screen allows viewing of all active channels simultaneously. The Trend screen displays a 24 hour trend one channel at a time.

  • Page 11: Setup Menu Configuration

    Figure 2.0 2.1 SETUP MENU CONFIGURATION Variables inside system and channel menu trees allow optimum C1 configuration for a wide range of demanding multi-point monitoring applications. Access to menus is via the Setup mode by pressing EDIT and activating the Setup screen shown in Figure 2.0.

  • Page 12: Channel Configuration Menus

    C1 Controller Users Manual Revision 4.6 2.2 CHANNEL CONFIGURATION MENUS Figure 2.1 illustrates the menu tree for configuring Channel variables. These items affect only the specific channel selected. System specific variables are in the menu tree shown in section 2.3.

  • Page 13: Channel Setup Entry Menu

    2.2.1 CHANNEL SETUP ENTRY MENU The entry menu shown on the left side of Figure 2.1 allows access to all configuration variables for the selected channel. These are, Alarm 1, Alarm 2, Alarm 3, Data From? Linearize, Configure and Calibrate. 2.2.2 ALARM 1 / ALARM 2 / HORN RELAY SET-UP MENU Alarms 1 and 2 are identical except A1 may not be acknowledged and front panel LED...

  • Page 14: Alarm 3 / Fault Alarm Menu

    C1 Controller Users Manual Revision 4.6 must be installed with inductive loads to prevent RFI noise spikes. Relay wiring should be kept separate from low level signal wiring. 2.2.3 ALARM 3 / FAULT ALARM MENU The discrete channel alarms identified as Alarm 3/Fault may be configured either as a 3 level alarm, or, as a Fault alarm indicating the input is out of range in the negative direction.

  • Page 15: Min / Max Raw Counts Menus

    4-20mA. Analog with Local Cal is available when the C1 will be the point of calibration for the analog input. Sensor Direct is identical to Analog with Local Cal and both activate the C1’s Cal Mode features (see section 2.2.7).

  • Page 16: Marker Menus

    The C1 reads this value and records it as the channel’s Sensor Life. Sensor Life is stored in the C1 modbus database and displayed as a bar-graph in the Sensor Info screen (see section 2.3.6). It is a useful tool for planning sensor...

  • Page 17: Linearization Menu

    Figure 2.6 2.2.5 LINEARIZATION MENU The linearization menu allows each channel to have its own linearization curve stored in the controller’s non-volatile memory. Input versus output points must be entered in percent of full scale values. This means if the range is 0-200 ppmH2S then 100 ppm is 50% of full scale.

  • Page 18: Eunits / Measurement Name Ascii Data Fields

    C1 may be set for 8 channel mode, deactivating channels 9-16. This is done in the System Setup menu described in section 2.3. The C1 will only allow 15 channels to be turned off. At least one channel must remain on 2.2.6e COPY DATA TO?

  • Page 19: Cal Mode

    Data From: menu, described in section 2.2.4, is set for Analog with Local Cal or Sensor Direct. C1 CAL MODE features allow pushbutton calibration of zero and span values. This feature should be utilized only when there are no other zero/span controls within the monitoring system since it is inappropriate to calibrate a signal at more than one point.

  • Page 20: System Configuration Menus

    Revision 4.6 2.3 SYSTEM CONFIGURATION MENUS Some items needing configuration are not specific to a channel but affect the entire C1 system. These are located in the system entry menu shown on the left side of Figure 2.10. System menus are accessed by pointing to the desired item and pressing EDIT.

  • Page 21: 10-0195 Discrete Relay "Failsafe" Mode

    C1 Controller. In these cases, it may be undesirable for a sensor on channel 9 to trip the same relay as a sensor on channel 2. The Group menus may restrict this.

  • Page 22: Common Horn Relay & Local Piezo

    2.3.3 COMMON HORN RELAY & LOCAL PIEZO The C1 is equipped with a low decibel audible piezo which chirps when keys are pressed and may be configured to audibly indicate alarm conditions. The common horn relay is similar to the common A1 & A2 common relays.

  • Page 23: Comm Port Menus

    ID settings are per channel as described in section 2.2.4). This slave port may be used to transfer C1 data to a host device such as a PC, PLC, DCS or even another C1. The slave port is addressable, allowing many C1 controllers to be connected to a single RS-485 cable.

  • Page 24: Eight / Sixteen Channel Modes

    1-8 and 9-16 are disabled. One way C1 cost is kept low is Input / Output option PCB’s are arranged into groups of 8 channels. Therefore, users with less than 9 channels require only 1 PCB and do not pay for I/O hardware for 16 channels.

  • Page 25: Authorization Mode

    Figure 2.16 2.4 AUTHORIZATION MODE A password entered in the AUTHORIZATION menu allows locking all menus. Viewing menus is not denied but attempts to edit variables flashes the Locked message on the LCD. Authorized individuals locking the system should first enter a name, phone #, or other contact information into the 10 digit field.

  • Page 26: Section 3

    5 amp form C relays for each common alarm event (A1, A2, FAULT/A3 & HORN), and power supply I/O terminals. JP1 allows the RS-485 ports to be configured for 2 or 4 wire operation. A 26 pin ribbon cable connects the I/O PCB to the C1 CPU and Display nest assembly. Two I C bus connectors allow addition of optional functions such as analog I/O and discrete alarm relays for each channel.

  • Page 27: Input / Output Optional Pcb's

    Figure 3.1 INPUT / OUTPUT OPTIONAL PCB’s Telephone style RJ11 connections are used to add optional 8 channel analog and digital I/O. A screen appears briefly after power up indicating what options are connected and for which channels. This information is also available from the Diagnostics Mode described in Section 4.
  • Page 28 C1 Controller Users Manual Revision 4.6 EXC and IN LO terminals are bussed together internally. EXC terminals are tied directly to TB2-1 (+) and IN LO terminals are tied to TB2-2 (-). Bussing allows transmitter power to be brought into the system at a single point (TB2) and distributed back out at each channel’s EXC / IN LO terminals to simplify field wiring.

  • Page 29: Optional Discrete Relay Pcb # 10-0195

    Some C1 applications with relays for all 48 alarms may require up to 6 boards. TB2 allows a heavier 5VDC power cable to be connected from terminals on the back of the C1front panel assembly, bypassing the I C cable.

  • Page 30: Optional *Bridge Sensor Input Board #10-0191

    An optional 8-channel, 12 bit Bridge Sensor Input board allows these popular gas detectors to be connected directly to the C1 without additional signal conditioning or transmitters. Up to four dual channel 10-0192 modules may be installed in each 8- channel 10-0191.

  • Page 31: Catalytic Bead Sensor Initial Setup

    2.2.7 needed to zero and span sensor readings. After performing the one time only Initial Setup as described below, all subsequent calibrations are by the C1’s electronic Cal Mode menus. *Catalytic sensors connected directly to the C1 should be limited to ranges of 0- 1000ppm. 3.1.4 CATALYTIC BEAD SENSOR INITIAL SETUP Catalytic bead sensors vary widely in power requirements and sensitivity.

  • Page 32: Optional Rtd / 4-20Ma Analog Input Board # 10-0170

    An optional 12 bit RTD Sensor Input board, shown in Figure 3.6, allows these popular temperature sensors to be connected directly to the C1 without additional signal conditioning or transmitters. A 3 position range jumper allows setting the gain of the input bridge amplifier for the three popular ranges of 0-100°C, 0-200°C or 0-400°C.
  • Page 33 Each channel must be calibrated individually by either simulating desired zero and span calibration resistance values or by actually placing the channel’s RTD into an actual precision temperature generator. Ice water is an acceptable method for generating the 0°C zero temperature value. Upscale span values are best simulated with an RTD calibrator.

  • Page 34: Optional 4-20Ma Analog Output Board #10-0167

    C bus. Each channel’s output will transmit 4mA for 0% readings and 20mA for 100% readings. Loop drive capability depends upon the level of the C1’s primary DC power supply. With at least 20 volts DC primary power they are capable of driving 20mA through a 750 ohm load.

  • Page 35: Optional Clock / Printer Interface Board # 10-0229

    DATE, TIME, 16 character ASCII channel ID from the C1, C1 channel #, alarm #, IN or OUT status. A buffer in the C1 retains the most recent 30 – 35 printed events. It is possible to dump the entire buffer to the printer from the menu shown in Figure 3.9.

  • Page 36: Clock / Printer System Set-Up Menu

    C1 Controller Users Manual Revision 4.6 Figure 3.8 3.1.7a CLOCK / PRINTER SYSTEM SET-UP MENU Detection of the 10-0229 on the I2C bus causes the Clock/Printer System Setup menu item to appear. Selecting it and pressing EDIT brings up the menu shown at right in Figure 3.9.

  • Page 37: Optional 24Vdc 150 Watt Power Supply

    The C1 Controller may be powered from 10-30VDC. However, many applications require 24VDC power for the monitors or transmitters providing inputs to the C1. A 150 watt AC / DC power supply may be included for these applications (115VAC or 230 VAC selected via slide switch).
  • Page 38 C1 Controller Users Manual Revision 4.6 can prove invaluable when testing I/O since relays and analog outputs may be stimulated without driving inputs to precise levels. Figure 4.1...
  • Page 39 Figure 4.2...

  • Page 40: Section 5

    SECTION 5 5.0 MODBUS RS-485 PORTS The C1 is equipped with Master (COMM 1), and Slave (COMM 2), modbus RTU ports. Port configurations are described in sections 2.2 and 2.3 of this manual. Section 5.0 defines register locations of data available via the C1 slave port.
  • Page 41 Six character Value ASCII string: Type Channel First Last Read FC Write FC Notes ASCII Value 40577 40579 2 characters per register; 3 registers per channel ASCII Value 40580 40582 2 characters per register; 3 registers per channel ASCII Value 40583 40585 2 characters per register;...
  • Page 42 C1 Controller Users Manual Revision 4.6 Alarm status words are bits packed into 16 bit integer where lsb = channel 1 alarm status and msb = channel 16 alarm status. Alarm status (bit = 1 indicates alarm is active): Type...
  • Page 43 MAX, MIN or AVERAGE values may only be retrieved one at a time. To improve bandwidth the master may retrieve the database in blocks of 120 registers at a time (one half of a channel’s data). The C1 only updates these 3,840 registers upon receiving an update command from the Modbus master.

  • Page 44: Section 6

    C1 Controller Users Manual Revision 4.6 SECTION 6 6.1 C1PM PANEL / RACK MOUNT ENCLOSURE The C1PM shown in Figure 6.1 is a half width 19” rack enclosure. It is supplied with hardware that allows mounting in either a full width 19” rack style cabinet or it may be panel mounted in a rectangular cutout.

  • Page 45: C1N4 Nema 4X Wall Mount Fiberglass Enclosure

    C1N4 NEMA 4X WALL MOUNT FIBERGLASS ENCLOSURE The C1N4 shown in Figure 6.2 is a fiberglass NEMA 4X wall mount enclosure. Seven, 8 channel I/O option PCB’s, such as analog input or discrete relays, may be mounted inside this enclosure. It is suitable for mounting outdoors but an above mounted weather deflector shield is recommended.
  • Page 46 C1 Controller Users Manual Revision 4.6 Figure 6.3...

  • Page 47: C1Ss Nema 4X Wall Mt 316 Stainless Steel Enclosure

    C1SS NEMA 4X WALL MT 316 STAINLESS STEEL ENCLOSURE The C1SS shown in Figure 6.4 is a 316 stainless steel NEMA 4X wall mount enclosure. Seven, 8 channel I/O option PCB’s, such as analog input or discrete relays, may be mounted inside this enclosure.

  • Page 48: C1 Main I/O & Option Pcb Footprint Dimensions

    C1 controllers have virtually unlimited possibilities for configuration of options such as analog I/O, discrete relays, printer interface and others. All C1 enclosure styles require the Main I/O PCB (Figure 3.1) but also support the mounting of additional option PCB’s as described below: ...
  • Page 49 Figure 6.6...

  • Page 50: Section 7

    SECTION 7 ADDING THE 10-0288 RADIO MODEM “WIRELESS” OPTION C1 master / slave serial ports may be connected to the 10-0288 FHSS (Frequency Hopping Spread Spectrum) wireless radio modem shown in Figure 7.1. The 10-0288 allows three separate modes of wireless operation. These are “Wireless Receiver”...

  • Page 51: Wireless Receiver Mode

    InRange of or communicate with a transceiver operating on a different Hop Channel.  System ID may be set from 1-255 using the C1 keypad and is similar to a password character or network number and makes network eavesdropping more difficult.

  • Page 52: Radio Status Alarms - Wireless Receiver Mode

    7.2.1 RADIO STATUS ALARMS - WIRELESS RECEIVER MODE When an C1 channel’s INPUT DATA FROM menu is set for WIRELESS RF900, in addition to processing the GASMAX ECX’s 10-bit “counts” value, it also receives status bits indicating Communications Error, Low Battery and Calibration.

  • Page 53: Wireless Modbus Slave Mode

    PCB’s described in section 3.1. This is a popular application when the modbus slave is another remote C1 or our ST- 90/QUAD controller available with built in radio modem compatible with the 10-0288.

  • Page 54: Yagi Antennas

    C1 Controller Users Manual Revision 4.6 Dipole and collinear antennas provide best performance when installed with at least 1 to 2 “wavelengths” clearance of walls or steelwork. The wavelength is based on the frequency: Wavelength in meters = 300 / frequency in MHz Wavelength in feet = 1000 / frequency in MHz Therefore, 900 MHZ antennas require at least 2/3 meter (2 feet) and 2.4GHz 15 cm (6...

  • Page 55: Coax Cables

    Solid connection means a large capacity conductor (not a small wire) with no coils or sharp bends. All other devices connected to the C1 need to be grounded to the same ground point. There can be significant resistance between different ground points leading to very large voltage differences during lightning activity.

  • Page 56: Connections To Other Equipment

    C1 Controller Users Manual Revision 4.6 When an antenna is located outside of a building and outside of an industrial plant environment, external coax sure diverters are recommended to further minimize the effect of surge current in the inner conductor of the coax cable.

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