Octagon 5554 User Manual
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Octagon 5554 User Manual

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5554/5558
User's Manual
Doc. #03580 Rev 0198
OCTAGON SYSTEMS CORPORATION
®
6510 W. 91st Ave. Westminster, CO 80030
Tech. Support: 303–426–4521

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  • Page 1 5554/5558 User’s Manual Doc. #03580 Rev 0198 OCTAGON SYSTEMS CORPORATION ® 6510 W. 91st Ave. Westminster, CO 80030 Tech. Support: 303–426–4521...
  • Page 2 It is a Condition of Sale that the user of Octagon products in life support applications assumes all the risk of such use and...
  • Page 3 IMPORTANT! Please read before installing your product. Octagon's products are designed to be high in performance while consuming very little power. In order to maintain this advantage, CMOS circuitry is used. CMOS chips have specific needs and some special requirements that the user must be aware of.
  • Page 4 Multiple component failures - The chance of a random component failure is very rare since the average MTBF of an Octagon card is greater than 11 years. In a 7 year study, Using CMOS Circuitry – 2...
  • Page 5 Octagon has never found a single case where multiple IC failures were not caused by misuse or accident. It is very probable that multiple component failures indicate that they were user-induced. Testing “dead” cards - For a card that is “completely nonfunctional”, there is a simple test to determine accidental...
  • Page 6 Hot insertion - Plugging cards into the card cage with the power on will usually not cause a problem. (Octagon urges that you do not do this!) However, the card may be dam- aged if the right sequence of pins contacts as the card is pushed into the socket.

  • Page 7: Table Of Contents

    CHAPTER 2: INSTALLATION ........7 Equipment ................... 7 Installation ..................7 Base Address ................10 Interrupt Selection ..............10 Installing the 5554/5558 ............13 CHAPTER 3: RS–422/485 ..........15 RS–422/485 Compatibility ..............15 Operating Precautions ..............16 Baud Rate ................... 16 Two or Four Wire Communication ...........

  • Page 9: Preface

    This manual is a guide to the proper configuration, installation, and operation of your 5554/5558 Quad/Octal Serial Card. The 5554/5558 expansion card is part of the Octagon Micro PC system. It is designed to be used with any other Micro PC Control Cards.

  • Page 10: Symbols And Terminology

    Paired angle brackets are used to indicate a specific key on your keyboard. For example, <ESC> means the escape key; <CTRL> means the control key; <F1> means the F1 function key. All addresses are given in hexadecimal. SYMBOLS AND TERMINOLOGY Throughout this manual, the following symbols and terminology are used: W[ - ]...

  • Page 11: Technical Support

    TECHNICAL SUPPORT If you have a question about the 5554/5558 expansion card and cannot find the answer in this manual, call Technical Support. They will be ready to give you the assistance you need. When you call, please have the following at hand: Your 5554/5558 Quad/Octal Serial Card User’s Manual...
  • Page 12 This page intentionally left blank. Preface – 4...

  • Page 13: Chapter 1 Overview

    MAJOR FEATURES 4/8 Serial Ports The 5554/5558 comes with either four or eight RS–232 serial ports. Two of the ports are jumper selectable to RS–422/485 operation. RS–485 Operation Both RS–485 ports use a 5–position terminal block. The blocks are routed to serial ports three and four.
  • Page 14 This page intentionally left blank. Overview – 6...

  • Page 15: Chapter 2: Installation

    Chapter 2 INSTALLATION The 5554/5558 Quad/Octal Serial Card uses one slot of the Micro PC card cage. It may be used with any Micro PC Control Card or Microcontroller. The 5554/5558 contains static sensitive CMOS WARNING: components. The greatest danger occurs when the card is plugged into a card cage.
  • Page 16 RS-422/485 Select and Network Interrupt Select Termination W1 W2 RS-232 Interrupt Channeling RS-422/485 Base Address Select and Quad/Octal Select RS-232 Figure 2–1—5554/5558 Component Diagram Installation – 8...
  • Page 17 Control Port 3 Ports 1-4 Port 4 RS-422/485 Config & Port 3 Termination Base + 7 Port 4 Quad Port 5 Serial I/O Control Port 6 Ports 5-8 Port 7 Port 8 Figure 2–2—5554/5558 Functional Block Diagram Installation – 9...

  • Page 18: Base Address

    1 is 100H, which is jumper configuration W4[1–2][3–4]. If there is another card in your system with a base address of 100H, you must use a different base address for the 5554/5558 or the other expansion card. W4: Base Address Select...
  • Page 19 ** = Not used by Datalight ROM-DOS NOTE: W2 applies to the 5558, ports 5-8. With the four port 5554, only one interrupt is available. The interrupt signal from each port is combined into one interrupt source. That interrupt source can be jumpered to one of five hardware interrupts at W1.
  • Page 20 W2. Also, on a 5558 configured for just one interrupt source, W3[1–2] should be jumpered. W2 should also be configured as "No interrupts", pins [1–3]. The following table shows the relationship between the various ports and connectors: 5554/5558 Ports and Connectors Port Connector Port 1 Port 2...

  • Page 21: Installing The 5554/5558

    “feet down” for a table mount cage and “feet back” for a rear mount. Slide the 5554/5558 into the card cage. The components on the card should face to the left. The lettering on the card (“Octa- gon Systems Corp.”) should be on the top edge of the card and the gold contact fingers toward the backplane.
  • Page 22 Card user’s manual for more information on downloading files. Refer to the READ.ME on the utility disk for more information on the example programs. The amber LED will light briefly whenever the 5554/5558 card is accessed (input or output). Installation – 14...

  • Page 23: Chapter 3: Rs-422/485

    CHAPTER 3 RS–422/485 RS–422/485 COMPATIBILITY With the 5554/5558 you can change port 3 and/or port 4 from RS–232 operation to RS–422/485. The RS–422/485 compatible ports are accessed through P2 and P3. You can connect up to 32 units on a multidrop RS–485 network. However, only one trans- mitter can be active at a time.

  • Page 24: Operating Precautions

    1200, 2400, 4800, 9600, 19.2K, 38.4K, 56K and 115.2K. Two or Four Wire Communication The 5554/5558 ports 3 and 4 can be configured for either two wire, half duplex, or four wire, full duplex, communication. The choice of the configuration is application specific and also dependent on the protocol of the network software.

  • Page 25: Transmission Timing

    RS-422/485 4 Wire (Full Duplex) Transmission Host Node 1 Slave Slave Slave Node 3 Node 2 Node 4 Figure 3–2—Four Wire Communication Transmission Timing The transmitter must be enabled prior to transmitting a message and disabled immediately after the stop bit of the last character of the message has been sent.

  • Page 26: Programming Example

    9600 baud, no parity, 8 data bits and 1 stop bit. It also sets ports 3 and 4 for RS–485 communication. Also refer to the 5554/5558 Utility Disk file 5554QB.BAS for PRINTS, PRINTSL code. DECLARE SUB PRINTS (A$) DECLARE SUB PRINTSL (A$) '$INCLUDE: 'BQ.BI'...
  • Page 27 SUB initports() FOR port=1 TO maxports rs485(port)=0 'default all ports not rs485 NEXT 'set ports 3–4 to rs485 rs485(3)=1: rs485(4)=1 'no parity, 8 data bits, 1 N81=3 stop bit DTR=1 'DTR enable in line control RTS=2 'RTS enable in line control 'receive data interrupt RD=1 INTRPT=8'interrupt enable bit...
  • Page 28 OUT (portbase), ASC(MID$(a$,I,1)) NEXT 'turn DTR off IF (rs485(port)=1) THEN 'make sure last char went out; test shift register is empty WHILE ((INP(portbase+5) AND &H20)=0) WEND WHILE ((INP(portbase+5) AND &H40)=0) WEND 'turn DTR on when done for 485 OUT (portbase+4), &HB END IF END SUB SUB rcvchars()

  • Page 29: Chapter 4 Technical Data

    Port 1 Port 2 Port 3 Port 4 5558 Port 5 Octal Port 6 Port 7 Port 8 Port 1 Port 2 5554 Quad Port 3 Port 4 NOTE: W4[5-6] must be on for 5554 Quad only. Technical Data – 21...

  • Page 30: Jumper Settings

    NOTE: W2 applies to the 5558, ports 5-8. W3: Interrupt Channeling Pins Jumpered Interrupts [2-3]* Quad - 1 interrupt [1-2]** Octal - 1 interrupt [2-3] Octal - 2 interrupts * = default for 5554 ** = default for 5558 Technical Data – 22...
  • Page 31 W4: Base Address Select Pins Jumpered Base Address 5554 Quad 5558 Octal [1-2] [3-4][5-6] [1-2][3-4] 100H* [1-2][5-6] [1-2] 140H [3-4][5-6] [3-4] 180H [5-6} Not jumpered 1C0H * = default NOTE: Jumpers [5-6] should not be connected on the 5558 Octal Card...

  • Page 32: Connector Pinouts

    CONNECTOR PINOUTS Serial Ports: J1-J8 Pin # Function Direction RxD* TxD* * = active low RS-422/485: P2 & P3 Pin # Function Receive - Receive + Transmit - Transmit + Technical Data – 24...

  • Page 33: Pc Bus Pinouts

    PC BUS PINOUTS Micro PC "A" Pin # Description Signal Pin # Description Signal I/O CH CK* I/O CH RDY * = active low Technical Data – 25...
  • Page 34 Micro PC "B" Pin # Description Signal Pin # Description Signal DACKI* RESET DRQ1 DACK0* IRQ2 CLOCK Not used IRQ7 DRQ2 IRQ6 -12V Not used IRQ5 Reserved Not used IRQ4 +12V Not used IRQ3 Analog Gnd Not used DACK2* MEMW* MEMR* IOW* Aux +5V...

  • Page 35: Warranty

    Octagon specifically disclaims. Octagon neither assumes nor authorizes any other liability in connection with the sale, installa- tion or use of its products. Octagon shall have no liability for incidental or consequential damages of any kind arising out of the sale, delay in delivery, installation, or use of its products.
  • Page 36 State of Colorado. The information in this manual is provided for reference only. Octagon does not assume any liability arising out of the application or use of the information or products described in this manual.

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