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If the DC circuit is to be grounded (e�g� due to national regulations), the PELV
criteria must be adhered to (protective extra-low voltage, circuit electrically isolated
from other circuits)�
Sensor and diagnostic electronics supply are not electrically isolated�
7.3 Ethernet connection
The RJ45 config socket is used for the connection to the Ethernet�
Ethernet cables can be supplied as accessories, e�g�:
cross-over cable, 2 m, article no� EC2080
cross-over cable, 5 m, article no� E30112
8 Modbus TCP
8.1 Characteristics Modbus TCP
Request
Parameters
Register access
only acyclical r/w
Register addressing
based on 1
Transmission rate
100 Mbits/s, 10 Mbits/s
Protocols and minutes
Modbus TCP/IP
Data format
big-endian
Modbus TCP/IP
Max� input and output process image
1024 bytes (512 registers)
Configuration
via PC with configuration tool: VES004
Max� number of socket connections
8x Modbus TCP
Register filing of the input data
analogue input register 16 bits (r)
Register filing of the output data
analogue holding register 16 bits (r/w)
Supported function codes
FC3, FC4, FC6, FC16
Write max� byte length for registers
1���123 registers
Read max� byte length for registers
1���125 registers
Summary of Contents for VSE153
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