Filter
Top Products
34
(2) When a redundant power main base unit (Q3RB) is used
(a) Available modules, the number of extension base units, and the number of
mountable modules
(b) Precautions
• If I/O modules are mounted exceeding the maximum number, "SP.UNIT LAY ERR" (error code: 2124)
occurs.
• "Number of CPU modules" indicates the number set in "No. of PLC" of PLC parameter ("Multiple CPU
Setting").
• When a C Controller module which occupies three slots is used, the maximum number of mountable I/O
modules will be two smaller than the number defined in the table on Page 34, Section 3.1.1 (2) (a).
Item Description
Number of CPU
modules
2 CPU modules
CPU No.1 (Basic model QCPU)
CPU No.2 (C Controller module)
Applicable CPU
module
*1
Basic model QCPU Q00CPU, Q01CPU Function version B or later
C Controller module
Q24DHCCPU-V,
Q24DHCCPU-LS
No function version restriction
Maximum number of
extension base units
4 extension base units
Maximum number of
mountable I/O
modules
25 - (Number of CPU modules)
Applicable main base
unit
Q38RB
Applicable extension
base unit
Type requiring no power supply
module (Q series)
Q52B, Q55B
Redundant power extension base unit Q68RB
Applicable extension
cable
QC05B, QC06B, QC12B, QC30B, QC50B, QC100B
Applicable power
supply module
Q63RP, Q64RP
(The Q63RP and Q64RP can be mounted on the same redundant power supply base unit.)