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3-30 Chapter 3
GSE Scale Systems
C
P
OMMUNICATION
The communication port parameters provide comm port configuration.
P199: Serial Port Instance
Sets the communication port# in effect when accessing the remainder of
the serial port configuration parameters P200 à P211.
P200 – P204: Protocol
Selects the comm port's communication protocol. The port's protocol must
match that of the connected device.
P205: Receive Mode
Selects the comm port's receive mode.
If the port is disabled, all received data is ignored
If the port is set to standard receive, all receive characters are processed
normally.
If the port is set to interpret, all received characters are screened through
the input interpreter (P217 à P224) before being used or discarded.
If the port is set for Modbus, all received characters are processed as
Modbus protocol. Enabling Modbus at P205 makes P209 à P211
available for configuration.
If the port is set for selection 4 à 250, a received character will invoke
macro 4 à 250 respectively.
P206: Transmit Mode
Selects whether or not a transmission will be delayed when the transmit
buffer becomes full.
If set to delay, the transmission will be put on hold until the transmit buffer
empties to the point where handshaking is asserted.
If set to abort, the transmission will be immediately aborted once the
transmit buffer becomes full.
P207 – P208: Transit / Receive Buffer Size
Sets the size of the transmit and receive buffers at P207 and P208
respectively.
P209: Modbus Address
Selects the Modbus address. P205 must be set for Modbus for this
parameter to be available.
P210: Modbus Mode
Selects Modbus ASCII or RTU mode. P205 must be set for Modbus for
this parameter to be available.
P211: Modbus Word
Selects the Modbus word format. HiLo will transmit a Modbus high byte
followed by the low byte, LoHi will reverse the order.
ORTS
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