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FX Series Programmable Controllers Devices in Detail 4
4-19
4.10 Counters
Device Mnemonic: C
Purpose: Event driven delays
Alias: Counter(s)
C
Available forms: A driven coil sets internal PLC contacts (NO and NC contacts available).
Various counter resolutions are possible including;
General/latched 16bit up counters - see page 4-20
General/latched 32bit bi-directional counters - see page 4-21
(The availability and use of all these counters is PLC specific - please
check availability before use)
Devices numbered in: Decimal, i.e C0 to C9, C10 to C19
Further uses: None
Example device usage:
Available devices:
High speed counters:
• For high speed counters please see page 4-22.
Setting ranges for counters:
• 16bit and 32bit up counters:1 to +32,767
• 32bit bi-directionalcounters: -2,147,483,648 to +2,147,483,647
Counter Resolution FX1S FX1N FX2N FX2NC
General 16bit up
counter
16
(C0 - 15)
16
(C0 - 15)
100
(C0 - 99)
Latched 16bit up
counter
16
(C16 - 31)
184
(C16 - 199)
100
(C100 - 199)
General 32bit
bi-directional counter
N/A
20
(C200 - 219)
Latched 32bit
bi-directional counter
N/A
15
(C220 - 234)
X1
K345
X2
C12
RST
C12