TECSYSTEM MULTIMODULE 133 Instruction Manual page 2

TECSYSTEM S.r.l ®
INTRODUCTION TO MULTIMODULE 133 MODULE
The MULTIMODULE expansion module interacts with NT133 monitoring unit via serial trans-
mission by 4 wires and allows to:
● transfer the data on a RS485 network with ModBus RTU protocol
•
take from the output two 4-20 mA current signals referred to the oil and winding tem-
peratures
•
have in output a pair of relays per oil, windings, fan 1, fan 2, pump 1 and pump2.
NT133 and the module are connected through an optoinsulated serial connection.
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MULTIMODULE 133