generic ascii ethernet communications interface module

mvi56-gec

the mvi56-gec module is a single-slot, backplane compatible solution for the allen-bradley controllogix platform. this module provides communication between ascii devices using the tcp/ip protocol and the processor.

compatible devices may be either ascii instruments with ethernet built in or ethernet connection via a thin server to the existing serial (rs-232/422/485) ascii device. five servers are present on the module permitting both the reception and transmission of data between the allen-bradley processor and attached devices. this module is designed by prosoft technology and incorporates licensed technology from allen-bradley (controllogix backplane technology).

features

• five servers to receive and/or transmit data
• 10/100mb ethernet-compatible interface

• configurable parameters

  - service port number

  - connection timeout

  - close type

• simple ladder logic operation
• setup and monitoring through rs-logix 5000 software and user-constructed configuration file (gec.cfg)
• controllogix backplane interface via i/o access

applications

the use of the tcp/ip protocol with ethernet at the device level on the plant floor is becoming widespread in many industry segments. using the mvi56-gec the advantage of ethernet speed is realized while allowing greater distances between networked devices.

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

functional specifications

functional specification for this module are as follows:

• communication parameters

  - 57600, no parity, 1 stop (fixed), 8 data bits

• configuration/debug port (cfg)

  - module configuration

  - communication and backplane transfer stats

  - server statistics and configuration

  - warm boot

  - configuration file upload/download

  - network configuration (includes the module ip address, mask, gateway address)

• each server monitors

  - state

  - ip and port number of connected client

  - number of messages received and transmitted

  - error codes

• ascii character strings up to 2048 characters in length supported
• full hardware handshaking control, providing radio, modem, and multi-dr-opsupport
• memory usage is completely user-configurable, supporting the storage and transfer of up to 4000 bytes to/from the control processor

• module error and status conditions returned to processor for diagnostic purposes

  - 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 data related to the module is contained in a single controller tag with defined ob-jects to ease in the configuration, monitoring, and interfacing with the module
• module configuration and communication configuration data is transferred to the mvi56-gec via a pre-defined user data type in the processor

hardware specifications

• ethernet port- 10/100m- 10base-t connector- link and activity led indicators

• form factor:- single slot - 1756 chassis compatible- local or remote rack
• backplane current load: 800 ma @ 5 v
• operating temperature: 0 to 60 deg c (32 to 140 deg f)
• storage temperature: -40 to 85 deg c (-40 to 185 deg f)
• shock:- 30g operational- 50g non-operational
• vibration: 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 only- hardware handshaking

ordering information