Stulz C2020 - Supervision and Communication Protocols; Communication Protocol Configuration

EN/07.2013/58/70
RS485
Serial line
RS232
Serial line
6. Supervision by
The parameters involved are:
• M08 REMOTE ASSISTANCE ADDRESS: pre-set = 1;
• M09 SERIAL PROTOCOL: pre-set = 0;
• M12 Address assigned to SPI connector 0=PEMS, 1=STULZ, 2=MODBUS STULZ, 4=MODBUS STANDARD:
pre-set= 1
• M13 Serial protocol SPI connector: pre-set= PEMS
The C2020 controller can communicate, through the PRG serial port or/and through WIB1000 connected to the SPI
connector, with the software installed on host computer which displays the setup parameters, the controller states and
alarms.
The parameter M09 (M13) selects which protocol manages the communication: 0=PEMS, 1=STULZ, 2=MODBUS
STULZ, 3=SAIA-BUS, 4=MODBUS STANDARD. Note that after any change the controller must be restarted
To allow the connection of a C2020 controller to the RS485 serial line, the serial 485 adapter (IS485, Stulz accessory
ACTSERC1010) is required.
6.1. PEMS Protocol (PE)
In case of PEMS PROTOCOL, the parameter M09 must be = 0.
6.2. Stulz Protocol
In case of STULZ PROTOCOL, the parameter M09 must be = 1.
There are two Stulz gateways: MIB, which manages the local communication, and WIB, which manages internet
communication.
In the example below in shown a gateway MIB which manages the communication according to the STULZ protocol
specifications, through the PRG serial port and through WIB1000 connected to the SPI connector.
Communication with PRG connector:
Communication with SPI connector:
RS485
Serial line
RS232
Serial line
C2020
Controller
PRG SPI
MIB
ACTSERC1010
Host computer
C2020
Controller
PRG SPI
MIB
WIB1000
Host computer