ProSoft Technology MVI56E-GSC/ GSCXT - Manual (Page 78)

Reference MVI56E-GSC ♦ CompactLogix or MicroLogix Platform
User Manual Enhanced Generic ASCII Serial Communication Module
Page 78 of 140 ProSoft Technology, Inc.
May 9, 2014
 CIPconnect ® -enabled network diagnostics and monitoring using ControlLogix
1756-ENxT modules and EtherNet/IP
®
pass-thru communications
 Sample Ladder Logic or Add-On Instruction (AOI) used for data transfers
between module and processor and for module configuration
 4-character, scrolling, alphanumeric LED display of status and diagnostic
data in plain English
 ProSoft Discovery Service (PDS) software finds the module on the network
and assigns a temporary IP address to facilitate module access
4.1.2 Functional Specifications
 The MVI56E-GSC and MVI56E-GSCXT are functionally identical. The
MVI56E-GSC is for normal process and control environments. The MVI56E-
GSCXT is conformal coated for extra protection in harsh or caustic
environments and operates in extreme high or low temperature
environments.
 Both modules transfer data in the largest possible I/O image block sizes,
which optimizes data through-put and update time.
 Both modules appear to the ControlLogix processor as input/output (I/O)
modules, rather than communication modules.
 Two ASCII serial communication ports:
o Can independently transmit and/or receive ASCII character strings and
serial byte streams
o Each port is individually configurable
 Receive ASCII character strings or byte streams up to 4096 characters in
length
 Received packet termination types:
o Stream mode (no packet termination)
o Receipt of specified character or characters
o Message length timeout
o Intercharacter spacing timeout
o Packet size limit (number of received characters/bytes)
 Module configuration and communication configuration data is transferred to
the module via predefined sample ladder logic
 Module error and status conditions returned to processor for diagnostic
purposes
o Module status
o Port error status word (bit mapped)
o Port receive state
o Port receive character count
o Port receive block count
o Port transmit state
o Port transmit character count
o Port transmit block count
4.1.3 Hardware Specifications
Specification Description