Rockwell Automation 160 DEVICENET (DN1) MODULE FRN 1-2.XX - Manual (Page 30)

Publication 0160-5.5 - September 1997
DeviceNet Parameter Descriptions 5-5
DeviceNet Parameters Use the following parameters to configure and monitor the DeviceNet
Network Interface. These parameters are unique to drives equipped
with the DeviceNet Communication Module.
Parameter
Number
Name and Description
Object Mapping
(Class-Instance-
Attribute)
Min./Max.
Range
Factory
Default
16 [Switches MAC ID]
This read only parameter reflects the state of the Node Address DIP switches.
This address may not be the current address of the module if the Baud Rate DIP
switches are set to 3. In this case P18 - [Nonvolatile MAC ID] is used. 0xB4-1-3 0 to 63 63
17 [Switches Baud]
This read only parameter reflects the state of the Baud Rate DIP switches. A
value of 3 means that the actual baud rate used by this module is given in the
value of P19 - [Nonvolatile Baud Rate].
0 = 125K BPS
1 = 250K BPS
2 = 500K BPS
3 = Use nonvolatile parameters for Address and Baud.
0xB4-1-4 0 to 3 0
18 [Nonvolatile MAC ID]
This read/write parameter allows you to program the Node Address of the mod-
ule independent of the DIP switch settings. To use this feature, set the baud rate
DIP switches (7 and 8) to ON before power-up. Changing this parameter does not
change the actual node address until power is cycled. 0xB4-1-5 0 to 63 63
19 [Nonvolatile Baud]
This read/write parameter allows you to set the baud rate of the module without
having to set DIP switches. To use this feature, set the baud rate switches (7 and
8) to ON before power up. Changing this parameter does not change the actual
data rate until power is cycled.
0 = 125k BPS
1 = 250k BPS
2 = 500k BPS
0xB4-1-6 0 to 2 0
20 [Bus Off Error]
This read/write parameter determines how the Communication Module pro-
cesses a CAN Bus Off condition.
0 = Hold CAN chip in its bus off (reset) state when bus off is
detected.
1 = If possible, fully reset the CAN chip and continue
communicating when a bus off condition is detected.
0x03-1-3 0 to 1 0
21 [Bus Off Count]
This read/write parameter counts the number of times the CAN chip went to the
bus off state. This counter stops counting when the count reaches 255. Any write
to this parameter will reset the counter to 0. 0x03-1-4 0 to 255 0