Devicenet Protocol; 369 Relay Profibus-Dpv1 Loss Of Communication Trip - GE 369 Communications Manual

DEVICENET PROTOCOL

Note
3.7

369 Relay Profibus-DPV1 Loss Of Communication Trip

4 DeviceNet Protocol
4.1 DeviceNet Communications
CG20
The value that is written acyclically to either
PROTECTION FUNCTIONS
data (as per format codes noted) and the upper byte written must always contain a value
of zero.
Table CG–5: Profibus-DPV1 Acyclic Write Data
OBJECT SLOT INDEX
0
0 0
2
Refer to the 369 Instruction Manual, chapter 5 for additional information about the force
output relays feature. Refer to the 369 Instruction Manual, chapter 5.3.4 for additional
information about the protection function blocking feature.
Table CG–6: Profibus-DPV1 Acyclic Read Data
OBJECT SLOT INDEX
0
2
0 0 4
6
8
If the 369 detects a problem in communicating with the Profibus master, the Profibus Loss
of Communications feature can be used to trip any combination of output relays. Refer to
the following sections for more information regarding this feature:
2.5: 369 Relay Profibus-DP Loss Of Communication Trip
369 Instruction Manual, chapter 5: 369 Communications (for information regarding the
setpoints for this feature).
The device profile is an extension of the Generic Device Profile (0x00). It is a group 2 only
server. The MAC ID and baud rate are programmable through relay front panel or the
EnerVista 369 Setup software. The polling function consumes one byte of control data
(described under assembly object class 04, instance 96h) and produces data as per Poll
Data Group 1, Poll Data Group 2, or the User-Defined poll data (described in assembly
object class 04, instance 64h). The COS\CYC operation produces 4 bytes of data as per
Class 4, Instance 66h, Attribute 3.
FORCE OUTPUT RELAYS
must be a 16-bit value. The lower byte contains the bitmask
LENGTH
2 bytes Force Output Relays
2 bytes Block Protection Functions
LENGTH
2 bytes Trip Relay Status
2 bytes Alarm Relay Status
2 bytes Aux1 Relay Status
2 bytes Aux2 Relay Status
2 bytes Functions Currently Blocked
369 MOTOR MANAGEMENT RELAY – COMMUNICATIONS GUIDE
CGCOMMUNICATIONS GUIDE
or
BLOCK
DESCRIPTION FORMAT
F141
F180
DATA ITEM FORMAT
F150
F150
F150
F150
F141