Valeport miniIPS2 - Format: Impact Subsea; Modbus RTU over RS485

miniIPS2 and 2e Operating Manual: MANUAL-383434403-1
Page | 23
© 2020 – Valeport Ltd
6.10 Format: Impact SubSea
This format emulates the Impact Subsea sensor output
Command:
#013;6
Format:
$ISDPT,dddd.ddd,u,ppp.pppp,B,tt.tt,C*zz<CR><LF>
Notes:
Field
Format
NEMA Identifier
$ISDPT
Pressure or Depth
xxxx.xxx
Unit
u
Absolute Pressure
ppp.pppp
Unit
B (Bar)
Temperature
tt.tt
Unit
C
Checksum
*zz
This string is fixed length, padded with spaces as required
Temperature is not available in the miniIPS2 so this field is always 00.00
The units displayed in the string can be enabled | disabled (#020)
Output String Examples
With units
$ISDPT, 0.996,M, 0.1004,B,00.00,C*2b
$ISDPT, 0.996,M, 0.1005,B,00.00,C*2a
Without units:
$ISDPT, 0.988,, 0.0997,B,00.00,C*6b
$ISDPT, 0.988,, 0.0997,B,00.00,C*6b
6.11 Modbus RTU over RS485
Modbus RTU as implemented in the miniIPS2 and 2e is an industry standard interface protocol that will run
over RS232 or RS485.
The Baud rate is variable 4800 to 19200 with 8N1 or 8E1 framing.
This conforms to the minimum requirements of the MODBUS standard of 9600 and 19200 baud with 8E1
framing.
Full set up and operation through Modbus is outside the scope of this document, please contact Valeport
for further details.
See section Instrument Communications Setup for details on how to enable Modbus