Stulz C2020 User Manual

EN/07.2013/58/83
6.5. SAIA-BUS Protocol
The parameters to be considered are:
• M10 SELECT SERIAL SPEED 0=9.6, 1=19.2, 2=38.4: pre-set = 0;
• M11 SELECT SAIA-BUS MODE 0=DATA, 1=PARITY: pre-set = 0;
In case of SAIA-BUS PROTOCOL, the parameter M09 it must be = 4.
By the parameter M10 it’s possible to select the baud rate for the serial port.
Saia-Bus protocol has two modes to communicate and the parameter M11 selects which mode.
In the system there isn’t gateway to manage the communication, as shown in the figure below.
6.6. SNMP Communication
In the case of SNMP communication, the parameter M09 selects PEMS to manage the communication.
Using WIB1000, it’s possible a SNMP monitoring.
Following the relative data point.
Analog inputs (SNMP address= 1)
All the values are multiplied by 10. For example the value 102 is 10.2.
AN-IN SNMP Address Trap message
Internal relative humidity (IRH) 1 No
Pressure of condenser (PC) 2 No
External relative humidity (ERH) 3 No
Temperature of evaporator (TE) 4 No
Temperature of condenser (TC) 5 No
Internal temperature (TI) 6 No
External temperature (TAE) 7 No
Delivery air temperature (TM) 8 No
Delivery air temperature of comfort unit 1 (TM1) - Custom 13 9 No
Delivery air temperature of comfort unit 2 (TM2) - Custom 13 10 No
Internal temperature 1 (TI1) - Custom 9 11 No
Internal temperature 2 (TI2) - Custom 9 12 No
RS485
Serial line
Host
Computer
485 Serial Connector
C2020
Controller
PRG SPI
SERC1010
(IS485)
C2020
Controller
PRG SPI
SERC1010
(IS485)

Stulz C2020 Specifications

General

Brand	Stulz
Model	C2020
Category	Controller
Language	English