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Configuration dialog box - table Parameters.
They influence some optional parameters of the protocol. The following line protocol parameters can be set:
Table 1
| Parameter | Meaning | Unit | Default value |
|---|
| A delay before the start of transmission of each data packet. | ms | 50 |
| If the timeout passes and no valid request comes, all stations on the line will go to a communication error. However, the values of output I/O tags will not be invalidated (as this is a server protocol). | mi:ss | 1:00 |
| If the value of the parameter is set to YES, the KOM process replies by SLAVE_DEVICE_FAILURE error to each request which is sent to a non-existent station (a station with an unknown address). If the value is NO, the KOM process ignores this request and does not send a reply to it. | YES/NO | YES |
| Switching time of Moxa redundant devices in case of a communication error or some problems. As this is a server protocol that waits for requests from external devices, a failure to receive a communication request for a longer time than the value of this parameter is considered to be an error. It is effective only for the SerialOverUDP Device Redundant line. | sec | 10 sec |
| Setting the TCP No Delay parameter to YES causes the low-level socket option TCP_NODELAY to be set, thus turning off the default packet coalesce feature.
The parameter is implemented only for TCP/IP-TCP line. | YES/NO | NO |
| The parameter specifies the protocol behavior in redundancy for the TCP/IP-TCP line category if the KOM process is not active: |
Read- NoBind - The passive KOM process
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communicates and responds to read requests, but does not respond to write requests- closes the TCP port and does not listen on it.
- Passive Disconnect - The passive KOM process immediately disconnects clients (closes TCP connections), but still listens on the TCP port.
- Passive
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NoBind- Read - The passive KOM process
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closes the TCP port and does not listen on it.Passive Read- communicates and responds to read requests, but does not respond to write requests
| Passive NoBind
Passive Disconnect
Passive |
NoBind Read| Kotva |
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| komunikacna_stanica |
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| komunikacna_stanica |
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Communication station configuration
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