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Function Block Specifications
Section 2-1
2-1 Function Block Specifications
2-1-1 Function Block Specifications
Item Description
Number of function
block definitions
CJ2H Units:
• CJ2H-CPU6@(-EIP): 2,048 max. per CPU Unit
CS1-H/CJ1-H CPU Units:
• Suffix -CPU44H/45H/64H/65H/66H/67H/64H-R/65H-R/
66H-R/67H-R: 1,024 max. per CPU Unit
• Suffix -CPU42H/43H/63H: 128 max. per CPU Unit
CJ1M CPU Units:
• CJ1M-CPU11/12/13/21/22/23: 128 max. per CPU Unit
CP1H CPU Units:
• CP1H-XA/X/Y: 128 max. per CPU Unit
CP1L CPU Units:
• CP1L-M/L: 128 max. per CPU Unit
NSJ Controllers:
• All models: 1,024 max. per Controller
FQM1 Flexible Motion Controllers:
• FQM1-CM002/MMA22/MMP22: 128 max. per Controller
Number of instances CJ2H Units:
• CJ2H-CPU6@(-EIP): 2,048 max. per CPU Unit
CS1-H/CJ1-H CPU Units:
• Suffix -CPU44H/45H/64H/65H/66H/67H/64H-R/65H-R/
66H-R/67H-R: 2,048 max. per CPU Unit
• Suffix -CPU42H/43H/63H: 256 max. per CPU Unit
CJ1M CPU Units:
• CJ1M-CPU11/12/13/21/22/23: 256 max. per CPU Unit
CP1H CPU Units:
• CP1H-XA/X/Y: 256 max. per CPU Unit
CP1L CPU Units:
• CP1L-M/L: 256 max. per CPU Unit
NSJ Controllers:
• All models: 2,048 max. per Controller
FQM1 Flexible Motion Controllers:
• FQM1-CM002/MMA22/MMP22: 256 max. per Controller
Number of instance
nesting levels
• CX-Programmer Ver. 5.0:
Nesting is not supported.
• CX-Programmer Ver. 6.0 and later versions:
Supports nesting up to 8 levels. (The instance called from
the program is counted as one nesting level.)
Number of variables
used in a function block
(not including internal
variables, external vari-
ables, EN, and EN0)
Maximum number of variables per function block definition
• Input-output variables: 16 max.
• Input variables + input-output variables: 64 max.
• Output variables + input-output variables: 64 max.
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