Introduction
EtherCAT Box with 6 digital inputs (24 VDC, 10 µs), 2 digital outputs (24 VDC, 0.5 A) and reference pressure inputs
The EP3744-x041 EtherCAT Box with six digital inputs and two digital outputs records binary control signals from the process level and transfers them, electrically isolated, to the controller. The signal status is indicated by LEDs, the signals are connected via 3-pole M8 plug connectors (sockets).
Four pneumatic connections (6 mm) offer the possibility to directly measure differential pressure. This value is measured or calculated in relation to the fifth reference pressure connection (6 mm).
The sensors and outputs are supplied from the control voltage Us. Since only one GND is available on the M8 plug for the inputs and outputs, this alternative supply was selected.
The load voltage Up is not used in the input module, but may optionally be connected in order to be relayed downstream.
Pressure measurement with EP3744-0041
The pressure is measured as an absolute value or as a differential value relative to the fifth connection via an integrated 6 mm fitting. The pressure values are available as 16-bit values. Measurement can take place between -1 bar and +1 bar, wherein the value is output relative to the fifth connection, e.g. for vacuum measurement in relation to the ambient pressure at the suction grippers. In absolute pressure mode, pressures between 0 and 1 bar can be measured.
Pressure measurement with EP3744-1041
The pressure is measured as an absolute value or as a differential value relative to the fifth connection via an integrated 6 mm fitting. The pressure values are available as 16-bit values. Measurement can take place between -7 bar and +7 bar, wherein the value is output relative to the fifth connection, e.g. for vacuum measurement in relation to the ambient pressure at the suction grippers. In absolute pressure mode, pressures between 0 and 7 bar can be measured.