Communications Writing Switching - Omron E5AN User Manual

CHAPTER 4 Sysway (E5 J,
J Communications
writing switching
4--8
X format) COMMUNICATIONS PROCEDURES
(4) Precautions
F Alarm values 1 and 2
When "alarm 1 type" is set to one of "upper/lower-limit alarm," "upper/
lower-limit range alarm" or "upper/lower-limit alarm with standby
sequence", "alarm value 1" is disabled as the upper and lower limits of
the alarm are set independently. "Upper-limit alarm value 1" and "low-
er-limit alarm value 1" become the alarm set values.
For this reason, when "upper/lower-limit alarm" is set, the value of
"upper-limit alarm value 1" and not "alarm value 1" is the value read
by communications.
The same applies to "alarm 2 type."
F Temperature input shift values
When "input type" is set to "non-contact temperature sensor," "tem-
perature input shift values" is disabled as temperature input is shifted
by 2-point shift. The values set to the "upper-limit temperature input
shift value" and "lower-limit temperature input shift value" parame-
ters are the set values used for temperature input shift.
For this reason, when 2-point shift is adopted, the value of "upper-limit
temperature input shift value" and not "temperature input shift val-
ues" is the value read by communications.
F Alarms
Alarms 1 and 2 can be used normally in communications. However,
alarm 3 cannot be used.
The logic of the MB command changes as shown in the table below accord-
ing to the MB command logic switching setting (advanced function level).
The MB command (communications writing switching) is equivalent to
the MB command (remote/local switching) on the E5jJ.
Text Data of Text Data of
MB Command
0000
(remote mode selection)
0001
(local mode selection)
· MB command logic switching default
: OFF (same logic as E5jJ)
MB Command Logic Switching Setting
OFF
Communications
writing enabled
Communications
writing disabled
ON
Communications
writing disabled
(local mode selection)
Communications
writing enabled
(remote mode selection)