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Series IP521-64 Industrial I/O Pack
Octal EIA/TIA-422B Communication Module
USER'S MANUAL
ACROMAG INCORPORATED
30765 South Wixom Road
P.O. BOX 437
Wixom, MI 48393-7037 U.S.A.
Tel: (248) 624-1541
Fax: (248) 624-9234
Copyright 1998, Acromag, Inc., Printed in the USA.
Data and specifications are subject to change without notice.
8500-596-B98M015
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Summary of Contents for Acromag IP521-64 Series
- Page 1 Octal EIA/TIA-422B Communication Module USER’S MANUAL ACROMAG INCORPORATED 30765 South Wixom Road P.O. BOX 437 Wixom, MI 48393-7037 U.S.A. Tel: (248) 624-1541 Fax: (248) 624-9234 Copyright 1998, Acromag, Inc., Printed in the USA. Data and specifications are subject to change without notice. 8500-596-B98M015...
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Page 2: Table Of Contents
___________________________________________________________________________________________ The information contained in this manual is subject to change APPENDIX..............without notice. Acromag, Inc. makes no warranty of any kind with CABLE: MODEL 5025-550-X. & 5025-551-X....regard to this material, including, but not limited to, the implied TERMINATION PANEL: MODEL 5025-552.... -
Page 3: Industrial I/O Pack Interface Features
(see the Acromag Model APC8620 receive ready, line status, data set, & flow control interrupts PCIbus carrier board). A wide range of other Acromag IP modules may be generated. Unique interrupts can be assigned to each are available to serve your signal conditioning and interface needs. -
Page 4: Industrial I/O Pack Software Library
Carrier OLE Control, and an OLE control for each restricts air flow within the card cage and is cause for concern. Acromag IP module as well as a generic OLE control for non- Adequate air circulation must be provided to prevent a temperature Acromag IP modules. -
Page 5: Noise And Grounding Considerations
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ P2 pin assignments are unique to each IP model (see Table 2.1) inserted in a backplane. As such, be careful not to attach signal and normally correspond to the pin numbers of the field I/O interface ground to safety ground via any device connected to these ports, or connector on the carrier board (you should verify this for your carrier a ground loop will be produced, and this may adversely affect... -
Page 6: 3.0 Programming Information
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ 3.0 PROGRAMMING INFORMATION The IP521 is an eight port RS422 module. Memory map Table 3.1 lists the addresses and registers corresponding to Port A. Detailed register maps for Ports B to H are not given. Since all ADDRESS MAPS registers corresponding to all Ports are listed in the same order, it is This board is addressable in the Industrial Pack I/O space to... -
Page 7: Rbr - Receiver Buffer Register
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ Table 3.1 Continued: IP521 I/O Memory Map RBR - Receiver Buffer Register, Ports A-H (READ Only) Base Base Addr+ Addr+ The Receiver Buffer Register (RBR) is a serial port input data R/W - MSR register that receives the input data from the receiver shift register. -
Page 8: Dll & Dlm - Divisor Latch Registers
Interrupt Enable Register crystal on the circuit board to obtain unique clock rates. You may IER BIT INTERRUPT ACTION contact Acromag Applications Engineering to explore options in this 0 = Disable Interrupt 1 = Enable Interrupt area. This interrupt will be issued when the FIFO has Table 3.2: Baud Rate Divisors (14.7456MHz Clock) -
Page 9: Isr - Interrupt Status Register
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ indicates a Xoff/special character detected interrupt pending. Bit 5 IER BIT INTERRUPT ACTION indicates a pending interrupt due to a change of state on the CTS or 0 = Disable RTS Interrupt RTS signals. -
Page 10: Mcr - Modem Control Register
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ LCR - Line Control Register, Ports A-H (Read/Write) A detailed discussion of word length, stop bits, parity, and the The Line Control Register is used to specify the asynchronous break signal is included in Section 4.0 (Theory of Operation). data communication format. -
Page 11: Lsr - Line Status Register
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ received, permitting the host processor to verify the transmit Line Status Register...continued and receive data paths of the selected serial channel. In this LSR Bit FUNCTION PROGRAMMING mode, interrupts are generated by controlling the state of the Break 0 = No Break Interrupt... -
Page 12: Msr - Modem Status Register
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ The Enhanced Register Set includes the following registers. MSR - Modem Status Register, Ports A-H (Read/Write) • Enhanced Feature Register (EFR) • The Modem Status Register (MSR) provides the host CPU with Xon-1, Xon-2 •... -
Page 13: Xon/Xoff - 1,2 Registers
When automatic hardware flow control is enabled, an interrupt will Acromag ID Code be generated when the receive IP Model Code FIFO is filled to the program trigger level and RTS will go to a logic “1”... -
Page 14: Ip521 Programming Considerations
OLE control, and registers: LCR, IER, DLL, DLM, MCR, and FCR. These control an OLE control for each Acromag IP module as well as a generic words define the character length, number of stop bits, parity, baud OLE control for non-Acromag IP modules. -
Page 15: Loopback Mode Operation
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ When the receiver FIFO and receiver interrupts are enabled, the Interrupt Generation following receiver FIFO character time-out status conditions apply: This model provides individual control for generation of transmit, 1. A FIFO character time-out interrupt occurs if: receive, line status, and data set interrupts on each of eight •... -
Page 16: Programming Example
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ recognition of the XOFF characters, the UART will compare the next for the port. A read of this register will be performed in response two incoming characters with the preprogrammed XON-1,2 to an interrupt cycle. -
Page 17: 4.0 Theory Of Operation
EIA-485 interface (see Drawing 4501-714). However, for true half-duplex EIA-485 START BIT Binary 0 (a shift from “Mark” to “Space”) operation, please see the Acromag Model IP502. DATA BITS 5,6,7, or 8 Bits PARITY... -
Page 18: Ip521 Operation
It is highly recommended that a non-functioning serial Ports A-H of this module (Refer to Table 2.1 for pin board be returned to Acromag for repair. The board can be easily assignments). Note that a suffix of ‘_A’, ‘_B’, ‘_C’, to ‘_H’ is damaged unless special SMT repair and service tools are used. -
Page 19: 6.0 Specifications
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ 6.0 SPECIFICATIONS UART EXAR…………………………… XR16C654 PHYSICAL Physical Configuration…….…... Single Industrial Pack Module. RS422/RS485 PORTS Length........ 3.880 in. (98.5 mm). Width........1.780 in. (45.2 mm). Channel Configuration……..…. Eight independent, non-isolated Board Thickness....0.062 in. (1.59 mm). EIA/TIA-422B serial ports with a Max Component Height.. -
Page 20: Industrial I/O Pack Compliance
Scratch Pad/Interrupt Vector Connections to AVME9630/9660, APC8610, or APC8620: P1, 50- Register contents. pin male header with strain relief ejectors. Use Acromag 5025- Access Times (8MHz Clock): 551-x cable to connect panel to VME board. Keep cable as ID Space Read...….…...… 0 wait state (250ns cycle). -
Page 21: 4501-434 Ip Mechanical Assembly
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ - 21 -... -
Page 22: 4501-713 Ip521 Block Diagram
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ - 22 -... -
Page 23: 4501-714 Rs422/Rs485 Interface Diagram
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ TxD+ TxD- RxD_ENABLE RxD+ RxD- TxD_ENABLE - 23 -... -
Page 24: 4501-715 Resistor Socket Location Diagra
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ - 24 -... -
Page 25: 4501-462 Cable 5025-550 (Non-Shielded)
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ - 25 -... -
Page 26: 4501-463 Cable 5025-551 (Shielded)
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ - 26 -... -
Page 27: 4501-464 Termination Panel 5025-552
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ - 27 -... -
Page 28: 4501-465 Transition Module Trans-Gp
SERIES IP521 INDUSTRIAL I/O PACK EIA/TIA-422B SERIAL COMMUNICATION MODULE ___________________________________________________________________________________________ - 28 -...
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