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2.1 System Configuration
2.1.4 System configuration overview
2
SYSTEM CONFIGURATION
Precautions
• The total extension cable length must be 13.2m (43.31 feet) or less.
• Do not install extension cables together with the main circuit lines (high
voltage and large current).
• Set a unique number for each extension base.
• The Q6 RB and QA1S6 B extension base units cannot be used.
• Connect an extension cable from OUT of the extension cable connector of
the base unit to IN of the next extension base unit.
• Mounting 65 or more modules causes an error.
Table 2.1 Restrictions on the system configuration
Maximum number of
extension base units
7 units
Maximum number of I/O
modules
64 modules
Main base unit model Q33B, Q35B, Q38B, Q312B
Extension base unit
model
No power supply module required Q52B, Q55B
Q series power supply module required Q63B, Q65B, Q68B, Q612B
Extension cable model QC05B, QC06B, QC12B, QC30B, QC50B, QC100B
Q series power supply
module model
Q61P-A1, Q61P-A2, Q61P, Q61P-D, Q62P, Q63P, Q64P, Q64PN
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