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9-2-2 FINS Communications From Another Node
When the PC Card Unit receives a FINS command from another node, it auto-
matically returns a response as shown in the following illustration.
PC Card Unit
FINS command processing
Other node
FINS command
FINS response
A ladder program related to FINS command/response processing is not
required for the C200HX/HG/HE.
For details regarding the handling of FINS command/response data at other
nodes, refer to 9-6 FINS Communications From Computers.
9-3
Using the CMCR Instruction
With the PC Card Unit, the CMCR instruction is used to issue FINS commands.
This subsection explains how to use the CMCR instruction for that purpose. For
an explanation of how to use the CMCR for memory card file operations, or for
details regarding the basic CMCR format, refer to 5-3 File Operations: CMCR
Instruction.
9-3-1 CMCR Format for FINS Commands
The CMCR instruction’s format for issuing FINS commands is as follows:
CMCR
Control
Source
Destination
C: Beginning control data storage word
S: Beginning command data storage word (see note 1)
D: Beginning response word (see note 2)
Note
1. The data length and FINS command are stored here.
2. The FINS response is stored here.
9-3-2 Control Data
Control data is written in the following format, from the beginning control data
word (C).
Operating level #0 = $0810, operating level #1 = $1810
Word
Bit
Number of bytes to send
Number of bytes to receive
Destination network address
Destination node number
Destination unit address
Number of retries
Response monitor time
*Response flag (0: Response required; 1: Response not required)
Using the CMCR Instruction
Section 9-3
Summary of Contents for SYSMAC C200HW-PCS01-EV1
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