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IDEC SmartRelay installation and wiring
IDEC SmartRelay Manual
32
Restrictions
• Signal status transitions 0
→
1 / 1
→
0
After a 0 to 1 or 1 to 0 transition, the signal must remain con-
stant at the input at least for the duration of one program cy-
cle, so that IDEC SmartRelay can detect the new signal sta-
tus.
The program execution time is determined by the size of the
circuit program. Appendix B contains a benchmark test rou-
tine that you can use to determine the current scan cycle
time.
Special features of FL1D-H12RCE/FL1D-B12RCE and FL1D-
H12SND
• High-speed inputs: I5 and I6
These versions are also equipped with high-speed counting
inputs (up/down counters, frequency triggers). The restric-
tions mentioned earlier do not apply to these high-speed in-
puts.
Note
The high-speed inputs I5 and I6 are the same as in the previous
versions FL1A to FL1C, i.e. a circuit program that is written in these
versions can be transferred to the new FL1D units by means of the
programming software WindLGC, without any changes to these
features.
Expansion modules do not have high-speed inputs.
•
Analog inputs: I7 and I8
The inputs I7 and I8 of IDEC SmartRelay versions FL1D-
H12RCE/FL1D-B12RCE and FL1D-H12SND can be used
both as standard digital inputs and as analog inputs. The in-
put mode is defined in the IDEC SmartRelay circuit program.
The inputs I7 / I8 provide digital functions, and the inputs AI1
and AI2 provide analog functions.
See also Chapter 4.1.
When using inputs I7 and I8 as analog ones, only the range
from 0 to 10 V DC is available.
Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com