Operation Manual

9
BMS - pCO5 1309 5806600_00
EN
Serial communication protocol
By means of the AER485P1 NRL accessory, it can communicate in
slave Modbus protocol towards a BMS network.
Communicaon is based on RTU mode via RS485. The remote super-
visor must have this seng.
ANALOGUE VARIABLES
R (read)= Command code Modbus =3
R/W (read/write) = Command code Modbus = 6
Address Description
Unit
of measure-
ment
Min Max Read/Write
1 SUW - Evap. outlet temp. 1 °C -99.9 99.9 R
2 SUW - Evap. inlet temp. 1 °C -99.9 99.9 R
3
4
5 SUR1 - Circ.1 recovery outlet temp. °C -99.9 99.9 R
6 SIR - Recovery inlet temp. °C -99.9 99.9 R
7 TAP1 - Circ.1 high pressure Bar -99.9 99.9 R
8 TBP1 - Circ.1 low pressure Bar -99.9 99.9 R
9 TAP2 - Circ.2 high pressure Bar -99.9 99.9 R
10 TBP2 - Circ.2 low pressure Bar -99.9 99.9 R
11 TAE - External air temp. 1 °C -99.9 99.9 R
12 TGP1 - Circ.1 pressing line gas temp. °C -999.9 999.9 R
13 TGP2 - Circ.2 pressing line gas temp. °C -999.9 999.9 R
14 SL1 - Circ.1 liquid temp. °C -99.9 99.9 R
15 SL2 - Circ.2 liquid temp. °C -99.9 99.9 R
16
17
18
19 Multi-function input --- -99.9 99.9 R
20
21 SUW com - Common evap. outlet temp. °C -99.9 99.9 R
22 SUR com - Common recovery outlet temp. °C -999.9 999.9 R
23 SSAN Domestic Hot Water Temperature °C -999.9 999.9 R
24 Software version --- 0 99.9 R
25 Software revision 0 99.9 R
26 SUR2 - Circ.1 recovery outlet temp. °C -99.9 99.9 R
27 SUW - Evap. outlet temp. 2 (DK cold only) °C -99.9 99.9 R
28 SUWC - Evap. outlet temp. Common (DK cold only) °C -99.9 99.9 R
29 High resolution low pressure 1 Bar/100 0 3276.7 R
30 High resolution medium low pressure 1 Bar/100 0 999.9 R
31 High resolution low pressure 1 DeltaP Bar/100 0 99.9 R
32 High resolution low pressure 2 Bar/100 0 3276.7 R
33 High resolution medium low pressure 2 Bar/100 0 999.9 R
34 High resolution low pressure 2 DeltaP Bar/100 0 99.9 R
180 Recovery proportional error --- 0 100.0 R
181 System proportional error --- 0 100.0 R
Conguraon of the remote supervisor
Mode of communicaon RTU
Type of communicaon RS485 standard, asynchronous , 1 start
bit
Speed of communicaon 19200 baud
Stop_Bit 2 stop bits
Parity_mode no parity