FC6A S
ERIES
M
ICRO
S
MART
A
LL
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IN
-O
NE
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YPE
C
OMMUNICATION
M
ANUAL
FC9Y-B1730 5-37
5: U
SER
C
OMMUNICATION
I
NSTRUCTIONS
User Communication Client
When a client connection is configured as the user communication client, the FC6A Series MicroSmart communicates with the
specified server device according to the settings configured in the ETXD and ERXD instructions that are programmed for the client
connection. The remote host number and other communication settings can be configured in the Connection Settings tab in the
Function Area Settings dialog box.
Specifications (User Communication Client)
Note 1: Can be enabled or disabled in Function Area Settings, Connection Settings.
Note 2: The settings can be configured in the Connection Settings tab in the Function Area Settings dialog box.
Establishing/Disconnecting User Communication Client Connections
When user communication clients are configured, connections are established on TCP/IP protocol. The connections are established
when ETXD/ERXD instructions are executed or when the FC6A Series MicroSmart has started to run (See Note1 above). After a
connection has been established, the connection will be kept open until either the FC6A Series MicroSmart is stopped or a special
internal relay allocated to the connection is turned on.
Note 1: Can be enabled or disabled in Function Area Settings, Connection Settings.
User Communication Client Receive Instruction (ERXD) Cancel Flag
The allocation of the user communication receive instruction cancel flags for each client connection is shown in the table below.
For details about the user communication receive instruction cancel flag, see "User Communication Receive Instruction Cancel
Flag" on page 5-22.
Item User Communication Client
Remote Host Number 1 to 255
Establish Connection
• When ETXD/ERXD Instructions are executed
• When the FC6A Series MicroSmart starts to run (Note 1)
Disconnect Connection
• When the FC6A Series MicroSmart is stopped
• When special internal relays (M8130 to M8132) are turned on
Number of Remote Hosts that the FC6A
Series MicroSmart Can Communicate
Simultaneously
One remote host per a user communication client (Note 2)
Receive Timeout Time 100 to 25,500 ms (100 ms increments); Default: 1,000 ms
Device Address Description Operation
M8222 Connection 1 Disconnect
When the reply is turned on, the corresponding
connection is disconnected.
M8223 Connection 2 Disconnect
M8224 Connection 3 Disconnect
M8225 Connection 4 Disconnect
M8226 Connection 5 Disconnect
M8227 Connection 6 Disconnect
M8230 Connection 7 Disconnect
M8231 Connection 8 Disconnect
Device Address Description
M8200 User Communication Receive Instruction Cancel Flag (Connection 1)
M8201 User Communication Receive Instruction Cancel Flag (Connection 2)
M8202 User Communication Receive Instruction Cancel Flag (Connection 3)
M8203 User Communication Receive Instruction Cancel Flag (Connection 4)
M8204 User Communication Receive Instruction Cancel Flag (Connection 5)
M8205 User Communication Receive Instruction Cancel Flag (Connection 6)
M8206 User Communication Receive Instruction Cancel Flag (Connection 7)
M8207 User Communication Receive Instruction Cancel Flag (Connection 8)
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