Bfm#71 To #74: Lower Limit Error Setting / Bfm#81 To #84: Upper Limit Error Setting - Mitsubishi Electric FX3G User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U 3UC
FX -4AD/FX -4AD (4-channel Analog Input)
3U 3UC

5.4.16 BFM#71 to #74: Lower limit error setting / BFM#81 to #84: Upper limit error setting

Set the upper/lower limit error data so that the upper/lower limit error status (BFM#26) can be detected.
The data setting range depends on the input mode set in BFM#0.
The following table shows the data setting range for each input mode:
Input mode (BFM#0)
Set
value
Voltage input
0
(-10 V to +10 V: -32000 to +32000)
Voltage input
1
(-10 V to +10 V: -4000 to +4000)
Voltage input
2 Analog value direct indication mode
(-10 V to +10 V: -10000 to +10000)
Current input
3
(4 mA to 20 mA: 0 to 16000)
4 Current input (4 mA to 20 mA: 0 to 4000)
Current input
5 Analog value direct indication mode
(4 mA to 20 mA: 4000 to 20000)
Current input
6
(-20 mA to +20 mA: -16000 to +16000)
Current input
7
(-20 mA to +20 mA: -4000 to +4000)
Current input
8 Analog value direct indication mode
(-20 mA to +20 mA: -20000 to +20000)
1. Cautions regarding upper/lower limit error setting
• To use the set upper/lower limit error data, be sure to turn on the upper/lower limit error detection function
(b1 of BFM#22).
• To use the data addition function (b0 of BFM#22) together with this function, be sure to add the addition
data (channels 1 to 4: BFM#61 to #64) to the upper/lower limit values to be set. In addition, observe the
data setting range.
PLC User's Manual - Analog Control Edition
Description
Numeric data type: Decimal (K)
Lower limit value
Setting range
(Channels 1 to 4:
BFM#71 to #74)
-32768 to +32767 -32768
-4095 to +4095 -4095
-10200 to +10200 -10200
-1 to +16383 -1
-1 to +4095 -1
3999 to 20400 3999
-16384 to +16383 -16384
-4096 to +4095 -4096
-20400 to +20400 -20400
5 Buffer Memory (BFM)
5.4 Buffer Memory Details
Setting range: See below.
Initial value: See below.
Initial value
Upper limit value
(Channels 1 to 4:
BFM#81 to #84)
32767
4095
10200
16383
4095
20400
16383
4095
20400
B-39
A
B
C
D
E
F
G
H
I
J