ProSoft Technology MVI56E-MCM User Manual

Verify Communication MVI56E-MCM ♦ ControlLogix Platform
User Manual Modbus Communication Module
Page 76 of 209 ProSoft Technology, Inc.
4.2 Verify Slave Communications
For verifying the communications to the module as a Slave you can monitor the
STATUS tags under the PRTXERRS section.
Below is an example.
The REQUESTS field shows the number of request messages sent to the module
as a Slave. The RESPONSES field shows how many times the module has
responded to a request message from the Modbus Master.
4.2.1 MVI56E-MCM Status Data Definition as a Slave
This section contains a description of the members present in the MCM.STATUS
object. This data is transferred from the module to the processor as part of each
read block using the module's input image. Sample Ladder Logic will copy this
information from the LOCAL: X: I.DATA {OFFSET} tag into the MCM.STATUS
array.
Offset
Content
Description
202
Program Scan Count
This value is incremented each time a complete program
cycle occurs in the module.
203 to 204
Product Code
These two registers contain the product code of "MCM".
205 to 206
Product Version
These two registers contain the product version for the
current running software.
207 to 208
Operating System
These two registers contain the month and year values for
the program operating system.
209 to 210
Run Number
These two registers contain the run number value for the
currently running software.
214
Port 1 Requests
This field contains the total number of messages sent from
the port.
215
Port 1 Responses
This field contains the total number of messages received
on the port.
216
Port 1 Errors Sent
This field contains the total number of message errors sent
from the port.
217
Port 1 Errors
Received
This field contains the total number of message errors
received on the port.
221
Port 2 Requests
This field contains the total number of messages sent out
the port.
222
Port 2 Responses
This field contains the total number of messages received
on the port.
223
Port 2 Errors Sent
This field contains the total number of message errors sent
out the port.
224
Port 2 Errors
Received
This field contains the total number of message errors
received on the port.
225
Read Block Count
This field contains the total number of read blocks
transferred from the module to the processor.
226
Write Block Count
This field contains the total number of write blocks
transferred from the module to the processor.

ProSoft Technology MVI56E-MCM Specifications

General

Brand	ProSoft Technology
Model	MVI56E-MCM
Category	Control Unit
Language	English