Allied Motion Spectrum Controls 2706-P22-SC User Manual page 91

Transmission is as follows:
Query for Updating Variable Registers using a 10 Frame
Beg of
ADDR FUNC
Frame
: 03 10
LRC Error
E6
NOTE
Response:
The normal response to a function 10 query is to echo the address, function code,
starting address and the number of registers that were loaded.
Response for Updating Variable Registers using a 10 Frame
Beg of
ADDR FUNC
Frame
: 03 10
Read the Message Queue using a Modbus ASCII 03 frame
This function allows the ability to read message numbers that are currently
running in the message queue on a display. A maximum of 64 registers can be
read since there is a maximum of 64 registers (or concurrently running messages)
in the message queue. The following is an example of request for the first 3
registers in the message queue (Registers 40103 through 40105) which contain
message data values 4, 6, and 11 respectively in display address 010.
Transmission is as follows:
Query for Requesting Message Data
Beg of
ADDR FUNC
Frame
: 0A 03
Response:
The addressed slave responds with its address and the function code, followed by
the information field. The information field contains 2 bytes describing the
quantity of data bytes to be returned. The contents of the registers requested
(DATA) are two bytes each, with the binary content right justified within each
pair of characters.
H.O L.O
ADDR ADDR
00 00
EOF
CR
Use of the Guaranteed mode for variable updates means messages may not
be displayed as expected.
H.O L.O
ADDR ADDR
00 00
H.O L.O
ADDR ADDR
00 66
Chapter 4: InView Protocol
BYTE
QUANTITY
CNT
0003 06
Ready to rec. response
LRC
DATA
Error
0003 EA
DATA
Number
LRC
of
Error
register
to read
0003 8A
User's Manual 0300277-03 Rev. A
4-29
DATA
00017 02DE 0007
LF
Ready to rec.
EOF
response
CR LF
Ready to rec.
EOF
response
CR LF