Specifications

Fieldbus Communications Support
31004624 8/2009 75
WLF Node (Selector 46h)
When the selector value is 46h, the node ID of the module responsible for the word
limit failure is sent in the status word’s low byte. When the low-byte value of the
status word is FFh, the HMI panel (see page 10) is responsible for the word limit
failure.
Major F/W Version (Selector 47h, 48h)
When the selector value is 47h, the low byte of the NIM’s major firmware revision is
sent. When the selector value is 48h, the high byte of the NIM’s major firmware
revision is sent.
Minor F/W Version (Selector 49h, 4Ah)
When the selector value is 47h, the low byte of the NIM’s minor firmware revision is
sent. When the selector value is 4Ah, the high byte of the NIM’s minor firmware
revision is sent.
NIM Device Status (Selector 4Bh)
The following information is valid for firmware version 2.0 and greater; selector 4Bh
is reserved in firmware version 1.0.
When the selector value is 4Bh, NIM device status is transmitted as the status
word’s low byte value:
D4 reserved
D5 reserved
D6 reserved
D7 reserved
*Input and output word limitation failures are discussed further at WLF Node (Selector 46h).
Bit Meaning
Bit Meaning of Value
D0 device failure
1 = any module on the island bus has failed
0 = no module failure
D1 internal failure
1 = any global diagnostic bit (except RESET) is set
0 = all global diagnostic bits are set to 0