123
Allocations to Slave Units Section 5-2
• Sixteen-point Output Slave Unit + Sixteen-point Expansion Input Unit
Two node address areas are allocated: Node address m in the OUT area
and node address m in the IN area.
• Sixteen-point Output Slave Unit + Eight-point Expansion Input Unit
Two node address areas are allocated: Node address m in the OUT area
and node address m in the IN area.
• I/O Example for Word Slave Units
The number of I/O points for Word Slave Units in a CompoNet Network
can be increased by using Expansion Units. The following table shows the
Slave Unit and Expansion Unit models that can be used.
• I/O Allocation when Expansion Units Are Used
Memory is allocated to a Basic Unit with an Expansion Unit in the same
way as it would be allocated to a Slave Unit of the same size as the com-
bination of the sizes of the Basic Unit and Expansion Unit.
The following examples show the allocations when an Expansion Unit is
connected to a Basic Unit at node address m (m = 0, 1, 2,…).
Note (1) For Slave Units with both inputs and outputs (see note (2)), the Input Area
node address is used as the Slave Unit node address. Therefore, the Par-
ticipation Flag and Communications Error Flag correspond to node ad-
dress bits for the Input Area.
(2) A Basic Unit and Expansion Unit combined to provide both inputs and
outputs, or a CRT1B-MD Bit Slave, which provides both inputs and out-
puts.
Basic Unit Expansion Unit Inputs Outputs
CRT1-ID16/ID16-1 None 16 0
XWT-ID08/ID08-1 24 0
XWT-OD08/OD08-1 16 8
XWT-ID16/ID16-1 32 0
XWT-OD16/OD16-1 16 16
CRT1-OD16/OD16-1
CRT1-ROS16/ROF16
None 0 16
XWT-ID08/ID08-1 8 16
XWT-OD08/OD08-1 0 24
XWT-ID16/ID16-1 16 16
XWT-OD16/OD16-1 0 32
OUT area
123456789101112131415 0
IN area
123456789101112131415 0
OUT area
12345670
IN area
1234567
89101112131415
0
Unused
To Next Page
Loading...
