37
Explicit Messages
Section 3-4
Precautions for Correct Use
For a Word Mixed Slave Unit, use the status for the node address of the Word
Input Slave Unit. For a Bit Mixed Slave Unit, use the status for the node
address of the Bit Input Slave Unit.
3-4
Explicit Messages
Explicit messages are general-purpose messages specified by CompoNet
protocol.
The messages are used to rewrite a Slave Unit parameter or to read out any
data from a Slave Unit.
In the Windows operation systems, explicit messages are used by functions
CPNT_SendExplicit, CPNT_PeekExplicit and CPNT_ReceiveExplicit.
To use the message by accessing the shared memory area, see Section 4-3.
3-5
Detailed Settings at Communications Cycle Startup
3-5-1
Registration Table Function
Outline
This is the function used to register the model of a Slave Unit to participate
along with the corresponding node address, and to check whether a Slave
Unit that is actually participating is registered or not. It identifies any Slave
Unit that is not on the list or whose allocated node address or model differs
from the information on the list, and prevents it from participating in the
network.
In the Windows operation systems, the function CPNT_StartCycleEx enables
the Registration Table function. To access the shared memory area, the
command OPEN_SYSTEMEX is used.
Error log
It stores the error log.
Registration table
example
It stores the registration table example made from the
information of the Slave Units currently participating.
Status
Description
Summary of Contents for 3G8F7-CRM21
Page 4: ...iv...
Page 10: ...x TABLE OF CONTENTS...
Page 46: ...26 Connecting the Communications Power Supply Cables Section 2 4...
Page 74: ...54 Board Hardware Error Notification Section 4 8...
Page 173: ...153 APPENDIX D Sample Program D 1 Sample Program 154...
Page 230: ...210 Wiring for Power Supply Section E 5...
Page 234: ...214 Index...
Page 236: ...216 Revision History...
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