MVI56-DH485R
♦
ControlLogix Platform
Ladder Logic
DH485 Interface Module for Remote Chassis
User Manual
Page 36 of 97
ProSoft Technology, Inc.
August 27, 2009
3.1.1 Status Object (DH485InStat)
This object stores the status data of the module. The DH485InStat object shown
below is updated each time a read block is received by the processor with an
identification code of 0 or -1. Use this data to monitor the state of the module at a
"real-time rate".
Name Data
Type
Description
PassCnt
INT
Program cycle counter
Product INT[2] Product
Name
Rev INT[2]
Revision
Level
Number
OP
INT[2]
Operating Level Number
Run INT[2]
Run
Number
BlkErrs DH485BlkStat
Block
transfer
statistics
Port0_Stat
DH485PortErrors
Port 0 status data
Port1_Stat
DH485PortErrors
Port 1 status data
The DH485BlkStat object stores the status information for the backplane data
transfer operation.
Name Data
Type
Description
Read
INT
Total number of read block transfers
Write
INT
Total number of write block transfers
Parse
INT
Total number of blocks parsed
Event
INT
Total number of event blocks received
Cmd
INT
Total number of command blocks received
Err
INT
Total number of block transfer errors
The following table describes the structure of the DH485PortErrors object.
Name Data
Type
Description
Active_Nodes
DINT
Active node bits for each station on network
Online_Status
INT
Online status (0=offline, 1=online)
Node_address
INT
Node address assigned to this port
Cur_Cmd
INT
Current command index being executed
Requests
INT
Total number of command requests
Responses
INT
Total number of response messages
Cmd_Err INT
Total number of command error messages
received
Cfg_Err_Word INT
Configuration
error
word
Reserved_18_19
INT
Reserved for future use
Rec_Packets INT
Total
number of packets received
Trans_Packets
INT
Total number of packets transmitted
Retry_Cnt
SINT
Total retry count
Retry_Fail
SINT
Total retry failure
NAK_rx
SINT
NAK’s because of no memory for reception
NAK_tx SINT NAK’s because of no memory for
transmission
Bad_Packets SINT
Bad
packets
