Allocation Of Device Numbers To Input Numbers; Allocation Table; Restriction Of Redundant Use Of Input Numbers - Mitsubishi Electric MELSEC-F FX3G Series User Manual

FX Series Programmable Controllers
3G
User's Manual - Hardware Edition
11.4

Allocation of Device Numbers to Input Numbers

The high-speed counter numbers are allocated to the input terminals X000 to X007 as shown in the following
table. The input terminals not allocated for high-speed counters can be used as general input terminals.

11.4.1 Allocation table

U: Up-count input
R: External reset input
Counter type
1-phase 1-count
input
1-phase 2-count
input
2-phase 2-count
input
*1. When a special auxiliary relay is driven in a program, the input terminals and their associated
functions are switched.

11.4.2 Restriction of redundant use of input numbers

The input terminals X000 to X007 can be used for high-speed counters, input interruption, pulse catch, SPD,
ZRN and DSZR instructions and general-purpose inputs. Take care not to overlap the input numbers.
D: Down-count input
S: External start input
Counter No.
X000 X001
C235 U/D
C236 U/D
C237
C238
C239
C240
C241 U/D R
C242
C243
C244 U/D R
C245
C246 U D
C247 U D
C248
*1
C248(OP)
C249 U D
C250
C251 A B
C252 A B
C253
*1
C253(OP)
C254 A B
C254(OP)*1
C255
→ For the function switching method, refer to Subsection 11.9.2.
11.4 Allocation of Device Numbers to Input Numbers
A: A-phase input
Input allocation
X002 X003 X004 X005
U/D
U/D
U/D
U/D
U/D R
U/D R
U/D R
R
U D R
U D
R
U D R
R
A B R
A B
R
A B R
11 Use of High-speed Counters
B: B-phase input
X006 X007
S
S
S
S
S
A B
S
163
11
12
13
14
15
16
17
18
19
20