West Control Solutions ProVU 4 - Manual (Page 128)

ProVU4 Controller, Profiler & Recorder/Controller - Product Manual
59407, Issue 1 – March 2008 Modbus Parameters Page 127
Read Profile Memory Status
This command returns the status of the profile memory used. The response to this command
is to return a table of all the profile numbers that are in use. A value of 0x00 indicates that the
profile position is free and value of 0x01 indicates that the position is used by a profile. Using
this command in conjunction with the read profile name command will give a directory of
profile numbers to profile names.
Read Profile Memory Status - Request (to instrument)
Field Name Data Comments
(Dec) (Hex)
Unit Address A/R A/R The ID address of the instrument as
required
Function Code 23 17 Requires the multi read/write function
Read Start Address High Byte 32 20
Read Start Address Low Byte 06 06
Read Quantity Of Registers High Byte 00 00
Read Quantity Of Registers Low Byte 32 20
Write Start Address High Byte 32 20
Write Start Address Low Byte 06 06
Write Quantity Of Registers High Byte 00 00
Write Quantity Of Registers Low Byte 02 02
Byte Count 04 04
Command Code High Byte 80 50
Command Code Low Byte 83 53
Profile Number High Byte A/R A/R
Profile Number Low Byte A/R A/R
CRC High Byte A/R A/R
CRC Low Byte A/R A/R
Read Profile Status
The instrument replies to the Read Profile Memory Status request as follows:
Read Profile Memory Status - Response (from instrument)
Field Name Data Comments
(Dec) (Hex)
Unit Address A/R A/R The ID address of the instrument
Function Code 23 17 The multi read/write function
Byte Count 64 40
Profile 1 Position 0 or 1 0 or 1
Profile 2 Position 0 or 1 0 or 1
etc…..
Profile 63 Position 0 or 1 0 or 1
Profile 64 Position 0 or 1 0 or 1
For each of the 64 possible profile
positions, a value of 0 is returned if the
position is free, or 1 if the position is empty.
CRC High Byte A/R A/R
CRC Low Byte A/R A/R