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The maximum number of PCs that may be used in a PC Link System is lim-
ited by the number of LR words available. This is determined by the number
of levels, the specific PCs employed, and the mode settings on the PC Link
Units.
A PC Link Unit must be assigned a number no greater than one less than the
maximum number of allowable PCs to be acknowledge as part of the Sys-
tem. A PC Link Unit assigned a number greater than this limit will not be ac-
knowledged. The maximum number of Units available in a specific PC Link
System is described in the following tables.
Only the PC Link Unit combinations shown below are possible. Note particu-
larly that the LK003-E (or LK009-V1 in LK003-E mode) can only be used with
other LK003-E PC Link Units (or LK009-V1 in LK003-E mode).
Polling Unit: C200H-LK401 PC Link Unit on C200H, C200HS, or C200HX/HG/HE(-Z) PC
Polled units
LK401 on
C200H, C200HS, or
C200HX/HG/HE(-Z)
LK009-V1 on C500
LK009-V1 on C1000H
or C2000H
Max. total
Multilevel 16 8 16 16
Single-level 32 8 32 32
Polling Unit: C500-LK009-V1 PC Link Unit on C1000H or C2000H PC
Polled units
LK009-V1 on C1000H
or C2000H
LK009-V1 on C500
LK401 on
C200H, C200HS, or
C200HX/HG/HE(-Z)
Max. total
Multilevel 16 8 16 16
Single-level 32 8 32 32
Polling Unit: C500-LK009-V1 PC Link Unit on C500 PC
Polled units
LK009-V1 on
C1000H or
C2000H
LK009-V1 on
C500
LK003-E on C500
LK401 on
C200H, C200HS, or
C200HX/HG/HE(-Z)
Max. total
Multilevel 8 8 Not possible 8 8
Single-level 8 8 Not possible. 8 8
LK003-E mode Not possible 8 8 Not possible. 8
Polling Unit: 3G2A5-LK003-E PC Link Unit on C500 PC
Polled units
LK009-V1 on C500 in LK003-E
mode
LK003-E on C500 Max. total
Single-level 8 8 8
System Limitations
System Configuration Section 2-1