Connection Notes For 20 Ma Measurement; Configuration Of 0/4 - Beckhoff EL3182 Documentation

LEDs
LED Color Meaning
Run green This LED indicates the terminal's operating state:
off
flashing
single flash
on
Error red EtherCAT communication error
Error red Fault indication for broken wire and if the measuring range for the respective channel 1 is
LED1 exceeded (under- or overrun)
Error red Fault indication for broken wire and if the measuring range for the respective channel 2 is
LED2 exceeded (under- or overrun)
(if
present)
HART green off
on
HART red HART communication error
Error
Connection assignment EL3182
Terminal point
Designation No.
I1 1
Uv1 2
GND 3
S 4
I2 5
Uv2 6
GND 7
S 8
4.8

Connection notes for 20 mA measurement

4.8.1 Configuration of 0/4..20 mA differential inputs
This section describes the 0/4..20 mA differential inputs for terminal series EL301x, EL302x, EL311x,
EL312x and terminals EL3174, EL3612, EL3742 and EL3751.
For the single-ended 20 mA inputs the terminal series EL304x, EL305x, EL314x, EL315x, EL317x, EL318x
and EL375x they only apply with regard to technical transferability and also for devices whose analogue
input channels have a common related ground potential (and therefore the channels are not to each other
and/or not to power supply electrically isolated). Herewith an example for an electrically isolated device is the
terminal EL3174-0002.
EL3182
State of the EtherCAT State Machine [} 18]: INIT = initialization of the
terminal or BOOTSTRAP = function for firmware updates [} 128] of the
terminal
State of the EtherCAT State Machine: PREOP = function for mailbox
communication and different standard-settings set
State of the EtherCAT State Machine: SAFEOP = verification of the Sync-
Managers [} 66] channels and the distributed clocks.
Outputs remain in safe state
State of the EtherCAT State Machine: OP = normal operating state;
mailbox and process data communication is possible
No HART communication
HART communication active
Description
Input channel 1
Sensor supply (internal connected with terminal point 6)
GND (internal connected with terminal point 7)
Shield (internal connected with terminal point 8)
Input channel 2
Sensor supply (internal connected with terminal point 2)
GND (internal connected with terminal point 3)
Shield (internal connected with terminal point 4)
Version: 1.2
Mounting and wiring
37