YOKOGAWA UM33A/S006 User Manual
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YOKOGAWA UM33A/S006 User Manual

YOKOGAWA UM33A/S006 User Manual

Digital indicator with alarms (with rs485 communication function
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User's
Manual
UM33A/S006
Digital Indicator with Alarms
(with RS485 Communication Function
(Modbus Master/Monitor))
User's Manual
<Detailed Instructions>
IM UM33A-01EN-S6
IM UM33A-01EN-S6
1st Edition

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Summary of Contents for YOKOGAWA UM33A/S006

  • Page 1 User’s Manual UM33A/S006 Digital Indicator with Alarms (with RS485 Communication Function (Modbus Master/Monitor)) User’s Manual IM UM33A-01EN-S6 <Detailed Instructions> IM UM33A-01EN-S6 1st Edition...

  • Page 2: Model And Suffix Code

    1 Introduction 1.1 Overview The following two functions are incorporated into the UM33A/S006. • Modbus/RTU master function (read only) • Modbus/RTU communication data monitor function The Modbus/RTU master function allows the registers of Modbus slave devices on the same circuit line to be read out.
  • Page 3 3 UM33A Modbus/RTU Master Function, Communication Data Monitor Function 3.1 Modbus/RTU Master Function Master VOLt Up to 31 connected slaves with a maximum length of 1200 m Slave Slave Slave This TOKUCHU product has a Modbus/RTU master function. The Modbus/RTU master function allows the registers of slave devices on the same circuit line to be read out and displayed on the UM33A screen.
  • Page 4 3.2 Modbus/RTU Communication Data Monitor Function Master Monitor VOLt Up to 31 connected slaves and monitor with a maximum length of 1200 m Slave Slave Slave This TOKUCHU product has a Modbus/RTU communication data monitor function. The Modbus/RTU communication data monitor function allows the monitoring of register readout communication between a Modbus/RTU master and slave devices on the same circuit line.

  • Page 5: Communication Conditions

    3.3 Communication Conditions ○ Connected devices Up to 31 devices equipped with Modbus RTU communication function can be connected. ○ Restrictions on connected devices The communication conditions, namely the baud rate, parity, stop bit, and data length, of connected devices must be the same as those of this instrument. 3.4 Simple flow for using Modbus RTU Master/Monitor 3.5 Display Error of Communication PV For the FLOAT data type, the display error of communication PV is ±...
  • Page 6 3.6 Data Types Supported by Communication PV and Display Limits The following table shows the display limits for each of the data types supported by communication PV. For the FLOAT type, a fixed decimal place display and an auto range display (see section 3.4) are available.
  • Page 7 3.7 L-H and H-L Register Arrangements When 32 bit LONG or FLOAT Is Selected For 32 bit integer and FLOAT types, L-H or H-L order can be selected. Set it according to the devices in use. Figure 3.6.1 32 bit L-H register arrangement Figure 3.6.2 32 bit H-L register arrangement 3.8 Display Screen (Communication PV1 to Communication PV8)
  • Page 8 Table 3.7.1 Unit prefix display Unit display (when unit is selected) Unit display (when exponent is selected) T (tera) G (giga) M (mega) k (kilo) No display ML (milli) E-03 u (micro) E-06 N (nano) E-09 P (pico) E-12 The unit display shows the selected unit (VOLT, A, C, etc.). The display can be shown or hidden with the communication ONOFF (MB.ST menu) value.
  • Page 9 3.10 Auto/Manual Switching of the Operation Screen V OL t V OL t V OL t V OL t When auto switching of the operation screen is used, the PV input value switches automatically between communication PV1, communication PV2, . . . communication PV8 at the specified display update interval (3S, 10S, 30S, 1M).

  • Page 10: Retransmission Output

    3.12 Retransmission Output Retransmission output can be produced using 4-20mA by selecting PV, communication PV1 to communication PV8. The high and low limits of the scale are as follows: ○ When RTS=PV: RTL + 1 digit to 30000 -19999 RTH-1digit The decimal place is the same as that of the PV input.
  • Page 11 3.13 Alarms and Event Lamps The number of alarms is different between PVs and communication PVs. PV: 4 alarms Communication PV: 2 alarms (can be set only for a single communication PV) Event lamps EV1 to 4 are for PV alarms. EV5 and 6 are for communication PV alarms. EV8 is for communication error indications.
  • Page 12 Figure 3.12.1 Block diagram of the alarm peripheral circuit Table 3.12.2 I relays for communication PV alarms and communication error I relay number Description Notes 4641 Communication PV1 alarm 1 value 4642 Communication PV1 alarm 2 value 4643 Communication PV2 alarm 1 value 4644 Communication PV2 alarm 2 value 4645...

  • Page 13: Troubleshooting

    3.14 Deleted Functions The following ten functions have been deleted from this TOKUCHU product. • PV alarms 5 to 8 are not available. The only available PV alarms are 1 to 4. • RS485 PC link communication, ladder communication, Modbus (ASCII) slave, Modbus (RTU) slave communication protocols are not available.

  • Page 14: Setting Parameters

    4 Setting Parameters The following tables show the setting parameters. 4.1 Parameters The additional parameters on this TOKUCHU product are shown below. [Setup Parameters] Function setting menu (menu: CTL) Parameter symbol Name of parameter Display level Setting range Initial value ALNO.
  • Page 15 RS-485 communication setting menu (menu: R485) Parameter symbol Name of parameter Display level Setting range Initial value MSMST : Modbus Master Protocol selection EASY MSMST MSMNT : Modbus Monitor 9600: 9600 bps Baud rate EASY 19200: 19.2k bps 19200 38400: 38.4k bps Data length EASY 8：8 bits...
  • Page 16 Note1: When the communication function ONOFF (MB.ST menu) values are all set to hidden, only the PV input is displayed. If the PV input is hidden, at least one of the ONOFF (MB.ST menu) value is ON. Note2: The display can be shown or hidden with display U.PV (KLOC menu) OFF/ON value. When the communication function ONOFF (MB.ST menu) (1 to 8) values are all set to OFF, the PV input cannot be hidden.
  • Page 17 [Operation Parameters] Communication PV alarm function setting menu (menu: M.ALM) Parameter symbol Name of parameter Display level Setting range Initial value 0: Not set PV high limit: 1 (AL1.T) AL1.T to AL2.T Communication PV alarm type 1 and 2 EASY 1: PV high limit PV low limit: 2 (AL2.T) 2: PV low limit...

  • Page 18: Parameter Map

    4.2 Parameter Map [Setup Parameters] Parameters added in this TOKUCHU product are indicated in yellow. Parameters deleted from this TOKUCHU product are indicated in gray. PASS R485 MB.ST ALNO. P.UNI ONOF ONOF ONOF ONOF ONOF ONOF ONOF ONOF UNIT P.DP ALSL P.RH DATA...
  • Page 19 [Operation Parameters] Parameters added in this TOKUCHU product are indicated in yellow. Parameters deleted from this TOKUCHU product are indicated in gray. ALRM M.ALM PYS1 PYS2 AL1.T AL1.T AL1.T AL1.T AL1.T AL1.T AL1.T AL1.T A1(1) A1(2) AL2.T AL2.T AL2.T AL2.T AL2.T AL2.T AL2.T...
  • Page 20 5 Wiring the RS485 Communication Interface To perform Modbus Master/Monitor communication, wire the system as shown below. Attach a terminator to the device at the end of the circuit. Modbus Master 4-wire system wiring 2-wire system wiring of Modbus Master 4-wire system terminals Wiring of Modbus Master 4-wire system terminals and 2-wire system terminals...
  • Page 21 Modbus Master -wire system wiring (/LP option only) 4-wire system wiring of Modbus Monitor 4-wire system terminals...
  • Page 22 2-wire system wiring of Modbus Monitor 4-wire system terminals 2-wire system wiring of Modbus Monitor 2-wire system terminals (/LP option only)

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