eltherm Ex-TC It Series User Manual

13
www.eltherm.com
13
www.eltherm.com
The following value are transferred by bus:
1. Data word Controller IS value, HI, LO
2. Data word Controller REF value, HI, LO
3. Data word Controller Undertemperature alarm
value, HI, LO
4. Data word Controller error
Sensor error 0x01 0000 0001
Undertemperature alarm 0x02 0000 0010
Measuring range error 0x04 0000 0100
MODBUS SETTINGS (Ex-TC/It-M)
SUPPORTED MODBUS PROTOCOL FUNCTIONS
Code MODBUS function Register Action
03h
READ HOLDING
REGISTERS
4xxxx
Read setpoints and error
messages from control-
lers and limiters
08h DIAGNOSTIC Function test of slaves
10h
WRITE MULTIPLE
REGISTERS
4xxxx
Send setpoints
to controllers
and limiters
MODBUS PARAMETERS
MASTER-SLAVE application Ex-TC/M
Interface RS485
Format RTU
Start bit 1
Data bit 8
Stop bit 1
Transmission rate 9600 baud
Parity None-parity
Slave ID 1...120
COMPLETING THE INSTALLATION
CLOSING THE HOUSING
1 Visual inspection of housing and cover to ensure they are
not damaged. Cover can only be inserted in one position
(locking arms / twist protection recesses have dierent
width). Move the cover to the appropriate position.
2 Attach the cover with the narrower locking arm (without a
headless screw), close the cover and…
3 Use the pliers to lock the cover
OPERATION & MAINTENANCE
• Observe the locally applicable safety regulations when the Ex-
TC is in operation
• Comply with the permitted operating conditions in accordance
with the “TECHNICAL DATA” section and the labelling . (type/
dimensions of lines, pipe diameter, operating conditions, IP
protection type).
DANGER
• If the temperature setpoint needs to be checked,
rst make certain that there is no explosive atmos-
phere present and that none can occur.
• Then connect the power supply and open the
housing cover.
• Instead of the Pt100 sensor, connect a Pt100
simulator and check the switching function of the
controller.
• After the check is complete, reconnect the Pt100
sensor and close the cover.
WARNING
The junction box may only be
opened (this also includes loosening cable entries!)
when it is disconnected from the power supply.

eltherm Ex-TC It Series Specifications

General

Brand	eltherm
Model	Ex-TC It Series
Category	Temperature Controller
Language	English