generic ascii serial communications module, flex i/o

mvi94-gsc

important! please read!
product discontinuation notice

mvi194-gsc will be discontinued effective 12/31/2004. this product is being replaced with mvi94-gsce, which is available now. please review the product end of life notification for important information on ordering, replacement and support for mvi94-gsc.

the generic ascii serial communication module (mvi94-gsc) provides a fast and easy way to add two fully-configurable ascii communication ports to the flex platform. the mvi94-gac module is a single-slot, backplane compatible solution for the allen-bradley flex platform. both ports support the sending and receiving of large ascii character strings. with the implementation of supporting ladder logic, many different devices that support ascii communications can be integrated into the flex platform.

features

the mvi94-gsc module has two active serial ports. prt2 is jumper-configured for direct or multi-dr-op field communication via rs-232/422/485.

two ascii ports are configured independently, allowing the module to operate using numerous configurations. once configured via ladder logic, the module will support the movement of ascii character strings to/from the flex processor"s data space.

the mvi94-gsc module is the ideal solution for the many applications where ascii character communications need to be added to the flex platform. example applications involving the mvi94-gsc module can be found in many industrial sectors generally involving the following applications.

• bar code scanner interfaces
• weigh scale interfaces
• legacy ascii protocol connections
• terminal port emulation
• printer driver (alarm/status printer)

functional specifications

• both ports capable of transmitting and/or receiving ascii character strings
• each port is individually configurable, including the following parameters:
• termination types: stream mode, termination character(s), message timeout, intercharacter timeout, packet size limit

baud rate: 110 to 115.2k baud

parity: , even, odd

stop bits: 1 or 2

data bits: 5 to 8

rts on/off timing: 0 to 65535 ms

min response delay: 0 to 65535 ms

handshaking (optional)

hardware: rts/cts, dtr/dsr

software: xon/xoff

• ascii character strings up to 4096 characters in length supported
• full hardware handshaking control, providing radio, modem, and multi-dr-op support
• memory usage that is completely user-configurable supporting the storage and transfer of up to 4000 registers to/from the control processor
• module error and status conditions returned to processor for diagnostic purposes, including:

module status

port error status word (bit mapped)\

port receive state

port receive character count

port receive block count

port transmit state

port transmit character count

port transmit block count

• all ascii and configuration data related to the module is transferred to/from the module in a pre-defined format to eas in the configuration, monitoring, and interfacing with the module
• module configuration and communication configuration data is transferred to the mvi94-gsc using a pre-defined data structure

hardware specifications

• form factor- single slot - 94 backplane compatible- locate in any slot of backplane
• dimensions- 46 mm x 94 mm x 75 mm- 1.8 in x 3.7 in x 2.95 in- weight 200 g (approximately
• backplane current load- 20 ma @ 5 v
• external power supply- 12-24vdc- 340 ma to 170 ma
• operating temperature- 0 to 55 deg c (32 to 140 deg f)
• storage temperature- from -40 to 85 deg c (-40 to 185 deg f)
• shock- 30g operational- 50g non-operational- 5 g from 10 - 150 hz
• relative humidity- 5-95% (w/o condensation)
• led indicators- module status- backplane transfer status- application status- serial activity and error led status
• configuration serial port (prt1)- db-9m pc compatible- rs-232- hardware handshaking
• application serial port (prt2)- db-9m pc compatible- rs232/422/485 jumper se-lectable- 500v optical isolation from backplane

ordering information