5 DeviceNet Operation
55
Series 275 Mini-Convectron Module with DeviceNet
Instruction Manual - 275563
5.5 DeviceNet Error Codes
You may use DeviceNet explicit messages or polled I/O to find out if an alarm or warning has been
reported.
An alarm or warning is indicated by the status byte in the input assembly, instance 2 or instance 5.
An alarm is bit weight 1, and a warning is bit weight 5.
Table 5-25 Identity Object Status, Class 1, Instance 1, Attribute 5
Bit Definition
0 An object is allocated - unrelated to error condtion
2 Configured - unrelated to error condtion
8 Minor recoverable fault, same as bit 3, analog sensor status
11 Minor unrecoverable fault, same as bit 1, analog sensor status
Table 5-26
I/O Status Byte and Device Supervisor Exception Status,
Class 30
hex
Instance 1, Attribute 0C
hex
Bit Definition
1 Alarm - same as bit 1, analog sensor status
5 Warning - same as bit 3, analog sensor status
Table 5-27 Module Alarm and Warning Status for Polled I/O
Instance BYTE Data: One Byte Format
2 or 5 Bit 7
0
Bit 6
0
Bit 5
Warning
Bit 4
0
Bit 3
0
Bit 2
0
Bit 1
Alarm
Bit 0
0
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