Digital input
EP1518 | 2-channel up/down counter 24 V DC, 1 kHz, 32 bit, adjustable input filters 0…100 ms
M8 I/O
connection sockets 
Signal status display 
Labelling areas 
Power supply
status display:
Box supply (US
Auxiliary voltage (UP
Power supply feed 
Power supply down- 
stream connection 
1 | + 24 V DC Us
2 | Input B
3 | GND
4 | Input A
5 | n.c.
1 | Tx+
2 | Rx+
3 | Rx-
4 | Tx-
1 | + 24 V DC Us
2 | + 24 V DC UP
3 | GND
4 | GND
3-wire  2-wire
signal input 
signal output 
extended temperature range

EP1518 | 2-channel up/down counter 24 V DC, 1 kHz, 32 bit, adjustable input filters 0…100 ms

The EP1518 EtherCAT Box with digital inputs acquires binary control signals from the process level and transmits them, in an electrically isolated form, to the controller. The signal state is displayed by light emitting diodes. The signals are connected via M12 screw type connectors. The input filters can be set between 0 and 100 ms via EtherCAT. Inputs 0 and 4 can be used as 32-bit up/down counters.

The sensors are supplied via the control voltage US in two groups of four sensors each. Any short circuits on the sensor side are detected and reported to the controller. The load voltage UP is not used in the input module, but may optionally be connected in order to be relayed downstream.

Technical data EP1518-0002
Specification EN 61131-2, type 1/3
Number of inputs 8, 2 of which can be used as 32 bit up/down counters
Input connections M12, screw type
Counting frequency max. 1 kHz
Protocol EtherCAT
Bus interface 2 x M8 socket, shielded, screw type
Nominal input voltage 24 V DC (-15 %/+20 %)
Input filter adjustable 0…100 ms
“0“ signal voltage -3…+5 V (EN 61131-2, type 3)
“1“ signal voltage 11…30 V (EN 61131-2, type 3)
Input current typ. 3 mA (EN 61131-2, type 3)
Distributed clocks yes
Sensor supply from control voltage, max. 0.5 A per 4 sensors, short-circuit-proof
Power supply connection feed: 1 x M8 male socket, 4-pin; downstream connection: 1 x M8 female socket, 4-pin
Bit width in the process image input/output: 8 bit data, 8 bit diagnostics, 48 bit counter input, 48 bit counter output
Current consumption from US (without sensor current) 120 mA
Electrical isolation 500 V
Special features adjustable filters
Weight approx. 165 g
Operating/storage temperature -25…+60 °C/-40…+85 °C
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 65/66/67 (conforms to EN 60529)/variable
Approvals CE, UL, Ex
ZK1090-3xxx-xxxx Cables for EtherCAT signal in- and -output
ZK2020-xxxx-xxxx Cables for M8 power supply