Duplicate Mac-Id Check - Datalogic DeviceNet AMT58 Series Instruction Manual

AMT58x-DN DeviceNET®

6.4.1 Duplicate MAC-ID check

This function is used to check, when a device is connected to the
DeviceNet network, whether its serial number, node-ID and vendor-
ID are single (univocal) in the network.
Message structure:
bit 10 9
1 0
Byte bit7 bit6
0 R/R
1
2
3
4
5
6
R/R bit = 0: duplicate MAC-ID check request. This message is sent
by a device to all nodes in the network.
1: duplicate MAC-ID check response. This message is sent
back to sender by the node in the network having the
same MAC-ID.
Port number = 0: device that allows only one P2P connection.
When serial number, node-ID and vendor-ID are not single (univocal)
in the network, an error message is generated and the device that
sent the "duplicate
"Unrecoverable fault" status (MS LED = red, see section "4.8
Diagnostic LEDS" and attribute
30
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CAN-ID
8 7 6 5 4
MAC-ID
7 CAN Data bytes
bit5 bit4 bit3
port number
vendor-ID - Low byte
vendor-ID - High byte
serial number - Low byte
serial number
serial number
serial number - High byte
MAC-ID
01-01-05
3 2 1 0
1 1 1
bit2 bit1 bit0
check request" switches
Status).
to