ABB REM 610 Technical Reference Manual page 68

REM 610
68
Motor Protection Relay
Technical Reference Manual
Table 4.1.14.2-2 Supported diagnostic subfunctions
Code Name
00 Return query data The data in the query data field is returned (looped back) in
01 Restart
communication
option
04 Force listen only
mode
10 Clear counters and
diagnostic register
11 Return bus
message count
12 Return bus
communication
error count
13 Return bus
exception error
count
14 Return slave
message count
15 Return slave no
response count
16 Return slave
NACK response
count
18 Return bus
character overrun
count
Note!
Sending other subfunction codes than those listed above will cause an "Illegal data
value" response.
Description
the response. The entire response is to be identical to the
query.
The slave's peripheral port is initialized and restarted and the
communication event counters are cleared. Before this, a
normal response will be sent provided that the port is not in the
listen only mode. However, if the port is in the listen only
mode, no response will be sent.
The slave is forced to enter the listen only mode for Modbus
communication.
All counters and the diagnostic register are cleared.
The number of messages in the communications system
detected by the slave since its last restart, clear counters
operation or power up is returned in the response.
The number of CRC errors encountered by the slave since its
last restart, clear counters operation or power up is returned in
the response.
The number of Modbus exception responses sent by the slave
since its last restart, clear counters operation or power up is
returned in the response.
The number of messages addressed to the slave or broadcast
which the slave has processed since its last restart, clear
counters operation or power up is returned in the response.
The number of messages addressed to the slave for which a
response (neither a normal response nor an exception
response) has not been sent since its last restart, clear
counters operation or power up is returned in the response.
The number of messages addressed to the slave for which a
NACK response has been sent is returned in the response.
The number of messages addressed to the slave for which it
has not been able to send a response due to a character
overrun since its last restart, clear counters operation or power
up is returned in the response.
1MRS 755537