Yaskawa MEMOCON GL120 - Manual (Page 105)

4.3 CPU Modules
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Item Specifications
Instruction Word Length 1) Relays: 1 word per instruction
2) Timers/Counters: 2 to 3 words per instruction
3) Math instructions: 2 to 3 words per instruction
4) Data process instructions: 2 to 3 words per instruction
Instruction Execution Time 1) Contacts: 0.80 to 0.95 µs
2) Coils: 1.55 µs
3) Unsigned 4-digit Decimal Addition Instructions: 2.25 to 2.60 µs
4) Block Transfer Instructions (size: 1): 1.85 µs
Block Transfer Instructions (size: 50): 11.65 µs
Block Transfer Instructions (size: 100): 21.65 µs
Scan Time Approx. 0.6 ms per 1K words in ladder diagram program
Remarks: The components of the ladder diagram program and their ratio used in mea-
suring the scan time are as follows:
D Contacts: 60%
D Coils: 15%
D SDAT instructions: 10%
D SUB instructions: 10%
D BLKM instructions: 5%
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