Commissioning
EL3182
107
Version: 1.2
The operating modes of the EL30xx are:
Mode
1 (default)
2
3
4
5
6
Filter (Index:
0x8000:06
)
On (default.:
50 Hz FIR)
Off
Distributed Clocks
mode
Off
On
Possible with EL30xx
x
x
x
x
x
Possible with EL30xx
x
x
x
x
x
x
Default setting for
EL30xx
EL31xx
On
Synchronization mode
(index:
0x1C33:01
, bit 0)
0: FreeRun (de-
fault)
0: FreeRun (default)
1: Frame triggered (SM3 inputs)
3: DC mode
FastOp-Mode "CoE" (In-
dex:
0x1C33:01
, bit 15)
Off (default)
Off (default)
On
Off (default)
On
Off (default)
(FastOP mode
n.a. in DC mode)
StartUp entry index
0x1C33:01
0x0000
0x0000
0x8000
0x0001
0x8001
Update frequency
depends on filter setting; automatically set inside
the terminal
see following values
EtherCAT cycle time, if value does
not fall below the lower setting-de-
pendent limit. See following values
for typical limit.
Operation with a faster EtherCAT
cycle is possible, but in that case
the EL30xx no longer supplies new
data in each cycle.
EtherCAT cycle
time, if value does
not fall below the
lower setting-de-
pendent limit.
typical data update time
(EL30x1)
50 Hz FIR: typi-
cal 625 µs
60 Hz FIR: typi-
cal 520 µs
IIR: typical 1 ms
< 600 µs
< 500 µs
typ. data update time
(EL30x2)
typ. data update time
(EL30x4)
typ. data update time
(EL30x8)
50 Hz FIR: typ.
1.25 ms
60 Hz FIR: typ.
1 ms
IIR: typ. 1 ms
< 1.1 ms
< 1 ms
Note
If filtering is en-
abled, the fol-
lowing settings
are activated in
the EL30xx,
irrespective of
other settings
“FreeRun” = on
and
“FastOp mode”
= off.
The notes on the
minimum Ether-
CAT cycle time in
DC mode must be
observed.
Combinations of filters, FastOp mode and Synchronization mode
Other combination options of filter, FastOp mode and Synchronization mode are expressly not rec-
ommended.
Synchron mode
In synchronous operation process data are generated frame-triggered, so that a new value is available with
each PLC cycle. In the EL31xx terminals synchron mode is used automatically (filter off, no DC). The
minimum cycle times are 80 µs (EL31x1/EL31x2), and 120 µs (EL31x4) for standard IPCs.
DC operation
In DC mode the process data are requested via DC interrupt. This results in the temporal jitter between two
frames being equalized, so that the sampling time is uniform across the system.
The EL31xx should be operated in DC input based mode.
The DC mode requires minimum cycle times of
• 100 µs (EL31x1/EL31x2 in 1 channel mode)
