Description Format Range Units or Resolution Comments # Reg
Modbus Address
Hex Decimal
7E21 7E21 32290 32290 Input#3 Accumulator Kt UINT16 bit-mapped
ddVVVVVV VVVVVVVV
1
7E22 7E22 32291 32291 Input#4 Accumulator Kt UINT16 bit-mapped
ddVVVVVV VVVVVVVV
1
7E23 7F53 32292 32596 Reserved Reserved
305
Block Size: 576
read/write except as noted
C34C - C34D 49997 - 49998 Log Retrieval Session Duration UINT32 0 to
4294967294
4 msec 0 if no session active; wraps around
after max count
2
C34E - C34E 49999 - 49999 Log Retrieval Session Com Port UINT16 0 to 3 0 if no session active, 1-3 for session
active on COM1 - COM3
1
C34F - C34F 50000 - 50000 Log Number, Enable, Scope UINT16 bit-mapped
nnnnnnnn esssssss
high byte is the log number (0-
system, 1-history1, 2-history2, 3-
history3,4-alarm log, 5-I/O changes )
e is retrieval session enable(1) or
disable(0)
sssssss is what to retrieve (0-normal
record, 1-timestamps only, 2-
complete memory image (no data
validation if image)
1
C350 - C350 50001 - 50001 Records per Window or Batch,
Record Scope Selector, Number of
Repeats
UINT16 bit-mapped
wwwwwwww snnnnnnn
high byte is records per window if
s=0 or records per batch if s=1, low
byte is number of repeats for
function 35 or 0 to suppress auto-
incrementing; max number of
repeats is 8 (RTU) or 4 (ASCII) total
windows, a batch is all the windows
1
Log Retrieval Section
Log Retrieval Block
(Cont’d)
To Next Page
