Omron SYSMAC CJ1W-SCU21-V1, Руководство по эксплуатации

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Conditions Requiring Routing Tables Section 6-7
6-6-3 Other Functions
Serial Gateway Send Delay (Serial Gateway Mode/Protocol Macro Mode)
The send delay function is used to prevent immediate transfer to the serial
port of a FINS command after it has been received by the Serial Communica-
tions Unit/Board and converted into the specified protocol. With this function,
the converted command is sent to the serial port after a set time. (The default
is 0 s, and the setting range for user-specified value is 0 to 300 s. Set this
function in the DM Area.)
For example, use the send delay function to prevent loss of send frames when
receive processing at the connected device does not provide sufficient speed.
Serial Gateway FINS Message Queuing
The Serial Communications Unit/Board can hold processing on standby for up
to five FINS commands for the Serial Gateway. If a sixth FINS command is
received at the serial port, a FINS error response (end code: 2605 hex (ser-
vice executing)) will be returned to the source of the FINS command.
6-7 Conditions Requiring Routing Tables
6-7-1 Treating Serial Communications Paths as Networks
When the Serial Gateway is executed, routing tables are either required or
optional as follows:
• Routing tables are required to treat a serial communications path as a
network when converting FINS messages to Host Link FINS for serial
conversion via the network.
• Under other conditions, routing tables are optional.
The details are provided in the following tables.
Conditions Requiring Routing Tables According to Target
FINS command Send delay
Send
Receive processing
Time
FINS command received
FINS transmission source:
Board/Unit:
Remote device:
Conversion
Target Protocol
conversion
Case Example Routing tables
for treating
serial
communications
path as network
PLC (CS/CJ Series, CVM1/CV
Series) Host Link
FINS Routing FINS network including
serial communications path (for
Serial Gateway) Network-to-
serial con-
version Required
Serial communications path con-
nection only Serial-to-
serial con-
version Optional