Outline of Network Communications Section 6-1
133
Supported Protocols and Units
The CX-Simulator supports only FINS communications for network communi-
cations and does not support the other communications (e.g. socket commu-
nications of the Ethernet Unit). The following virtual Network Communications
Units can be used in the CX-Simulator.
Virtual Communications Unit
Protocol
Controller Link Unit Ethernet Unit Simulator
Communications Unit
FINS Communications Servicing Supported Supported Supported
Data Link Function Not supported None None
Socket Servicing None Not supported None
FTP Server Function None Not supported None
Mail Send Function None Not supported None
Note 1. The Simulator Communications Unit is the CX-Simulator's own commu-
nications unit supporting only FINS communications. When the Controller
Link Unit or Ethernet Unit is not used, this unit will be used (default).
2. This unit is a virtual unit for maintaining the compatibility with CS/CJ-
series PLCs. No settings are required for this unit.
Supported Network Instructions
The instruction words related to serial communications that can be used in a
program are shown below.
Instruction Support Remarks
SEND/RECV instruction Yes Send/Receive data using FINS
commands
CMND instruction Yes Any FINS command Issue
I/O Memory Allocation
The outline of I/O memory allocation and the supporting status by the CX-
Simulator are shown below.
Area Allocation Name Support
Network Communications Enabled Flag (A202) Yes
Communications Port Error Flag (A219) Yes
Auxiliary Area
Network Communications Completion Code (A203
to A210)
Yes
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