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5. LADDER COMMUNICATION
IM9000F02-E2
45
5.2 Communication identifier
In RKC standard communication described above, each item is expressed by an identifier
combined with a number and a letter (M1, S1 ...) but in ladder communication, each item is
expressed only by a number.
(Attributes
RO: Read only, R/W: Read/Write)
Upper Lower
Measured value
(PV)
01
00
Within input range
1/100
q
C
RO
----
Undefined
01
01
----------
------
----
----
Manipulated
output
value (MV)
01
02
-0050 to +1050
1/10 %
RO
----
Undefined
01
03
----------
------
----
----
Alarm 1 output
*
1
Alarm 2 output
01
04
------
RO
----
Burnout
(Measured value)
Set value (SV)
01
05
Setting limiter (low limit)
to
setting limiter (high limit)
1/100
q
C
R/W
0000
Alarm 1 setting
01
06
Process alarm :
0.000 to 50.000
1/100
q
C
R/W
0500
Alarm 2 setting
01
07
Deviation alarm :
-19.999 to +19.999
Undefined
01
08
01
09
Proportional band
01
10
0001 to 5000
q
C
R/W
3000
Undefined
01
11
----------
------
----
----
Integral time
01
12
0001 to 3600
sec
R/W
0240
Derivative time
01
13
0000 to 3600
sec
R/W
0060
PID/AT transfer
01
14
0 : PID
1 : AT (Autotuning)
------
R/W
0000
AUTO/MANUAL
transfer
01
15
0 : AUTO
1 : MANUAL
------
R/W
0000
The amount of
manual output
01
16
Output limiter (low limit)
to
output limiter (high limit)
1/10 %
R/W
*
2
----
#1 : Engineering unit
#2 : Attribute
Continued on the next page.
Identifier
Item
------
----
----
----------
Details of data
#1 #2
Factory set
value