4–42
MM300 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE
DEVICENET PROTOCOL
CHAPTER 4: FIELDBUS INTERFACE
Table 4-9: Fieldbus interface external connections (DeviceNet)
The module status (MS) and network status (NS) LEDs indicate the status of the Fieldbus
interface.
Table 4-10: DeviceNet LED indications
When used for DeviceNet, the fieldbus port has the following characteristics.
•
Baud rate: 125, 250, and 500 kbps
•
MAC ID: 0 to 63
•
Vendor ID: 928
•
Product Code: 0x4D42
•
Message types: poll, and explicit messaging
NOTE
NOTE:
The ODVA cable assembly length (0.4 meter) must be considered in calculating the network
drop length budget to the node.
DeviceNet power supply configuration
The DeviceNet port uses external voltage to power the electronics. The figures below show
the configuration of the comms board option/power supply switch.
NOTE
NOTE:
Devicenet supports external power only.
Figure 4-10: Comms board power supply configuration
Path
Connection (external)
Wire color
V–
Pin 3, CAN_GND
Black
L
Pin 2, CAN_L
Blue
C
Pin 5, CAN_SHLD
Bare
H
Pin 7, CAN_H
White
V+
Pin 9, CAN_V
Red
LED
LED operation
Description
MS
Green on, red on, green on
Device self-test
Flashing green
Device in standby state
Green on
Device operational
Flashing red
Recoverable fault
Red on
Unrecoverable fault
NS
Flashing green
Online, not connected
Green on
Online, connected
Flashing red
Connection timeout
Red on
Critical link failure
Red and green
Network access detected
DEVICENET WITH EXTERNAL SUPPLY
ON
853846A1.CDR
1 2 3 4 5 6 7 8
= switch position
