Pin assignment, display and diagnosis
EL3201
 | Two-wire connection EL3201 If the EL3201 is operated with a two-wire connection, the inputs +R and +RL must be bridged by the user. |
EL3201 – pin assignment
Terminal point | No. | Comment |
|---|---|---|
+R1 | 1 | Input +R1, current-carrying |
+RL1 | 2 | Input +RL1, de-energized sense line |
-R1 | 3 | Input -R1, current-carrying |
-RL1 | 4 | Input -RL1, de-energized sense line |
n. c. | 5 | not used |
n. c. | 6 | not used |
-R1 | 7 | Input -R1, current-carrying |
Shield | 8 | Shield |
| Connection of analog RTD signal lines To ensure that the analog signals can be measured with as little interference as possible, also observe the notes in the chapter "Connection of analog RTD signal lines". |
EL3201 - LEDs
LED | Color | Meaning | |
|---|---|---|---|
RUN | green | This LED indicates the terminal's operating state: | |
off | State of the EtherCAT state machine: INIT = initialization of the terminal or BOOTSTRAP = function for firmware updates of the terminal | ||
flashing | State of the EtherCAT state machine: PREOP = function for mailbox communication and different standard-settings set | ||
Single flash | State of the EtherCAT state machine: SAFEOP = verification of the sync manager channels and the distributed clocks. | ||
on | State of the EtherCAT state machine: OP = normal operating state; mailbox and process data communication is possible | ||
ERROR1 | red | Short circuit or wire breakage. The resistance is in the invalid range of the characteristic curve | |