Allocation Of Device Numbers To Input Numbers; Allocation Table - Mitsubishi FX3U SERIES User Manual

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition
11.5

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.

11.5.1 Allocation table

The allocation of the first unit of FX
H/W: Hardware counter
A: A-phase input
Terminals to be connected
• Input terminals of main unit
• FX -4HSX-ADP
3U
High-speed input special adapters
Type of counter
1-phase 1-count
input
1-phase 2-count
input
2-phase 2-count
*4
input
*1. When the input terminals of the main unit receive pulses having a response frequency of 50k to
100kHz, wire the terminals as stated below.
- The wiring length should be 5m (16'4") or less.
- Connect a bleeder resistance of 1.5kΩ (1 W or more) to the input terminal, so that the load current
of the open collector transistor output on the mating device side to 20mA or more.
188
-4HSX-ADP is shown in the heavy-line frames.
3U
S/W: Software counter
B: B-phase input
1st unit
2nd unit
Classifi-
Counter No.
cation
*1 *2
C235 H/W
*1 *2
C236 H/W
*1 *2
C237 H/W
*1 *2
C238 H/W
*1 *2
C239 H/W
*1 *2
C240 H/W
C241 S/W
C242 S/W
C243 S/W
C244 S/W
*3 *2
C244(OP) H/W
C245 S/W
*3 *2
C245(OP) H/W
*1 *2
C246 H/W
C247 S/W
C248 S/W
*1*3 *2
C248(OP) H/W
C249 S/W
C250 S/W
*1 *2
C251 H/W
C252 S/W
*1 *2
C253 H/W
*3
S/W
C253(OP)
C254 S/W
C255 S/W
11 Use of High-speed Counters (C235 to C255)
11.5 Allocation of Device Numbers to Input Numbers
U: Up-count input
R: External reset input
Input allocation
X000 X001 X002 X003
− − −
Input allocation
X000 X001 X002 X003
U/D
U/D
U/D
U/D
U/D R
U/D
U/D R
U/D
U D
U D R
U D R
A B
A B R
A B R
→ For the wiring, refer to Section 11.10.
D: Down-count input
S: External start input
X004 X005 X006
− − −
−
X004 X005 X006
U/D
U/D
R
U/D R
S
U/D
R
U D R
U D
S
U D R
A B R
A B
S
A B R
X007
−
X007
S
U/D
S
S