WCS* Read Head Position Encoding System
EtherNet/IP Interface (LS5xx*)
2020-01
43
7 EtherNet/IP Interface (LS5xx*)
The read head communicates with the controller (e.g., PLC) via EtherNet/IP. An object-oriented
fieldbus system for exchanging data between nodes based on Ethernet communications.
The basic properties of the interface are:
• Transfer rate 10 Mbit/s or 100 Mbit/s, half or full duplex operation
• Automatic negotiation of the transfer rate and the duplex method (auto negotiation)
• Automatic setting for crossed lines (auto crossover)
EtherNet/IP protocol works according to the CIP protocol (Common Industrial Protocol) and is
used to control, configure, monitor, and collect data. Time-sensitive data exchange (implicit
messaging) takes place using the UDP/IP protocol and non-time-sensitive data exchange
(explicit messaging) using the TCP/IP protocol.
The read head supports the following features:
• "Listen only," "Input only," and "Exclusive Owner" connection types
• Message transmission as "Multipoint data transfer" (Multicast) and "Point-to-point data
transfer" (Unicast)
• Cycle time (request packet interval) 2 ms
• Dynamic Host Configuration Protocol (DHCP)
• Address Conflict Detection (ACD)
7.1 Electrical Connection
Connection diagram for WCS3B read head
The WCS3B-LS5* read head is connected to EtherNet/IP and the power supply via an 8-pin
M12 socket with Y encryption.
Figure 7.1 WCS3B, EtherNet/IP interface
Pins 6 and 8 are reserved for an internal interface and are connected to ground (-UB).
Caution!
Property damage and system malfunctions due to incorrect pinout
Incorrect assignment of the wire pairs to the respective pins can result in property damage and
system malfunctions.
• Note the assignment of the wire pairs to the pins as shown in the respective wiring dia-
grams.
1
2
3
4
13
4
5
2
6
7
8
5
6
7
8
TX +
TX -
RX +
RX -
-UB
reserved
+UB
reserved
Interface
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