User Manual

ProVU4 Controller, Profiler & Recorder/Controller - Product Manual
Page 120 Modbus Parameters 59407, Issue 1 – March 2008
Get Segments Remaining
Returns the number of unused segments remaining in the instrument. The number will be
between 0 and 255, depending on how many have been used in the profiles so far created.
Get Segments Remaining - 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 00 00
Read Quantity Of Registers Low 01 01
Write Start Address High 32 20
Write Start Address Low 06 06
Write Quantity Of Registers High 00 00
Write Quantity Of Registers Low 01 01
Byte Count 02 02
Command Code High Byte 83 53
Command Code Low Byte 82 52
CRC High Byte
A/R A/R
CRC Low Byte
A/R A/R
The instrument replies to this message with an Edit Response Message.
Edit Response Message From Instrument
The instrument replies to each the profile or segment creation, edit or delete message with a
Edit Response Message. The same format is used when replying to the Get Segments
Remaining request.
Edit Response Message - 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 02 02
Command Response High Byte
A/R A/R
Command Response Low Byte
A/R A/R
Two data bytes containing the
Command Response data (see below)
CRC High Byte
A/R A/R
CRC Low Byte
A/R A/R