2.1  System Configuration
2.1.7  Connecting to motion controller CPU (A171SHCPUN, A172SHCPUN, A173UHCPU(-S1))
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1
OVERVIEW
2
BUS CONNECTION
3
DIRECT CONNECTION 
TO CPU
4
COMPUTER LINK 
CONNECTION
5
MELSECNET/10 
CONNECTION (PLC TO 
PLC NETWORK)
6
CC-Link CONNECTION 
(INTELLIGENT DEVICE 
STATION)
7
CC-Link CONNECTION 
(Via G4)
8
ETHERNET 
CONNECTION
(from previous page)
*1 Use the A168B extension base unit for connecting GOTs.
*2 This includes the extension cable length (between the base unit and the extension base unit).
*3 The number of connectable GOTs is limited by the type of the connected CPU and the number of the intelligent 
function modules.
 Section 2.3   When connecting multiple GOTs
Bus connector conversion box
When installing the 1st GOT 30m or more away from the main base unit, the bus 
connector conversion box is required.
Connection conditions
System configuration
Number of 
GOTs
 *3
Distance from main 
base unit to 1st GOT
2
3m or less
More than 3m
33m or less
(a)+(b)=MAX3m
*2
Connection cable
4
Connection cable
7
(a)
(b)
(a)+(b)+(c)=MAX33m
*2
(c)
12
Connection cable
Connection cable
5 7
(a)
(b)
(a)+(b)+(c)=MAX33m
*2
(c)
2 1
(b)+(c)=MAX30m
7
5
6
(b) (c) (d)
2 1
(a)+(b)+(c)+(d)=MAX33m
*2
(a)+(b)=MAX3m
*2
(c)+(d)=MAX30m
3
Bus connector  
conversion box
Connection  
cable
Connection  
cable
Connection  
cable
(a)
(a)+(b)=MAX3m
*2
Connection cable
4
Connection cable
7
(a)
(b)
(a)+(b)+(c)+(d)=MAX33m
*2
(d)
Connection 
cable
7
(c)
(c)+(d)=MAX30m
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