Counters Description
ple, Modbus RTU) or on special start and stop characters (for
example, Modbus ASCII).
Frames discarded Counts all protocol-specific erroneous frames received. If the
driver detects an error while receiving a frame, the whole
frame is automatically discarded. This also means that the
protocol in question never receives a faulty link frame from
the driver. When this counter is incremented, one of the de-
tailed error counters (Parity, Overrun, Framing) can also be
incremented.
Frames transmitted Counts all protocol-specific frames transmitted from the
COM channel.
Collisions Counts the number of transmission collisions that have oc-
curred. Used in RS-485 mode by some protocols where trans-
missions could collide with reception. For example, DNP3 un-
solicited reporting mode.
Parity errors Counts the number of parity errors detected in characters
received.
Overrun errors Counts the number of overrun errors detected in characters
received.
Framing errors Counts the number of framing errors detected in characters
received.
Link status In write direction: By writing value 1 to this parameter, all the
diagnostic counters are reset to 0.
Link status In monitoring direction: If the driver instance is in use by any
communication protocol, the monitoring value shows value
1. Otherwise, the value is 0.
7.4.2.7 Defining Ethernet port settings
Change the Ethernet port settings primarily via PCM600 to ensure that
PCM600 is able to export a consistent configuration to SYS600. Ethernet
port settings are recommended to be changed only when the device is
stand-alone and properly configured.
1. Select Configuration> Communication> Ethernet> Network1 address or
Configuration> Communication> Communication> Ethernet> Network2
address.
2. Define the settings for Network1 or Network2.
• IP address
• Subnet mask
• Default gateway of the optional rear port Ethernet connector
7.4.2.8 Defining serial port settings
1. Select Configuration> Communication> COM1 or COM2.
2. Define the settings for the serial port.
It is possible to change the general serial communication parameters per port.
Select fiber or galvanic mode with the proper baud rate.
1MRS759118 D
Commissioning
REX640
Operation Manual
123
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