Reference MVI56-DH485R
♦
ControlLogix Platform
User Manual
DH485 Interface Module for Remote Chassis
ProSoft Technology, Inc.
Page 81 of 97
August 27, 2009
5.4
MVI56-DH485R Status Data
This section contains a listing status data presented to the processor by the
module. The following table lists the data returned in identification code 0 read
blocks:
Word# Description
1
Scan Counter
2 to 3
Product Name (ASCII)
4 to 5
Revision (ASCII)
6 to 7
Operating System Revision (ASCII)
8 to 9
Production Run Number (ASCII)
10
Read Block Count
11
Write Block Count
12
Parse Block Count
13
Reserved
14
Reserved
15
Number of Block Errors
The user can also copy this data block to the module using the Error/Status
Pointer parameter in the configuration file.
The following table lists the status data passed from the module to the
ControlLogix processor in blocks with an identification code of -1:
Port 0
Word# Byte#
Description
1 to 2
0 to 3
Active node bits for stations 0 to 31
3
4 to 5
Online status (0=Offline, 1=Online)
4
6 to 7
Node address of the unit/port emulated
5
8 to 9
Current command index being issued
6
10 to 11
Total number of request messages
7
12 to 13
Total number of response messages received
8
14 to 15
Total number of command list errors
9
16 to 17
Configuration error word. Each bit represent a configuration error
condition.
10
18 to 19
Reserved for future use.
11
20 to 21
Total number of packets received
12
22 to 23
Total number of packets transmitted
24
Total retry count
13
25
Retry failure counter
26
Total number of NAKs because of no memory for reception
14
27
Total number of NAKs because of no memory for transmission
28
Total number of bad packets
15
29
Total number of bad control packets