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Rockwell Automation 1791DS-IBxxxx Guard I/O DeviceNet Safety Modules User Manual

Page 156

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156

Rockwell Automation Publication 1791DS-UM001J-EN-P - May 2013

Appendix A

Get Point Status from Modules by Using Explicit Messaging

-

Table 23 - Reading the Cause of the Safety Output Error

Explicit Message

Read/
Write

Function

Command (hex)

Response (hex)

Service
Code

Class
ID

Instance ID

Attribute ID

Data Size

Safety Output Cause of
Error (Fault)
Information

Read

Reads the cause for the
status bit (1…n)
specified by the Instance
ID turning OFF.

0E

3B

01…n

6E

-

0: No error
01: Configuration invalid
02: Over current detected
03: Short circuit detected
04: Output ON error
05: Error in the other dual-channel
output
06: Internal-relay output circuit error
(replace module)
07: Relay failure (replace relay)
08: Dual-channel violation
09: Short circuit detected at safety output

Table 24 - Monitoring the Test Output Point

Explicit Message

Read/
Write

Function

Command (hex)

Response (hex)

Service
Code

Class
ID

Instance ID

Attribute ID

Data Size

Test Output Cause of
Error (Fault)
Information

Read

Reads the cause for the
status bit (1…n)
specified by the
Instance ID turning
OFF.

0E

09

01…n

76

-

0 = No error
01: Configuration invalid
02: Overload detected
03: Cross circuit detected
05: Output ON error
06: Undercurrent detected for
muting lamp

Table 25 - Setting Hold/Clear for Communication Errors (Test Output)

Explicit Message

Read/
Write

Function

Command (hex)

Response (hex)

Service
Code

Class
ID

Instance ID

Attribute ID

Data Size

Setting for Output Status
(Hold or Clear) after
Communication Error

Read

Reads whether hold or clear is
set as the output status after a
communication error for an
output specified by the
instance ID. The setting can be
read
for a specified number of
points.

0E

09

01…08

05

-

1 byte
00: Clear
01: Hold

Setting for Output Status
(Hold or Clear) after
Communication Error

Write

Sets whether hold or clear as
the output status after a
communication error for an
output specified by the
instance ID. The setting can be
read for a specified number of
points.

10 09

01…08

05

1

byte

00: Clear
01: Hold

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