Communication parameters – Rockwell Automation 900 Temperature Controller Communications Functions - Series B User Manual
Page 15
Publication 900-UM004D-EN-E - July 2010
About Communications Methods
1-7
Communication Parameters
Note that communications parameters are enabled after they have been
changed by resetting the controller.
•
Protocol Selection (
psel
)
The communications protocol can be selected. Set CompoWay/F
(900-TC) or Modbus.
•
Communications unit number (
u-no
)
This parameter is for setting a unique unit number for each of the
temperature controllers in the system. This unit number is set so that
the host device can identify the temperature controller when
communications are carried out with the host device. Set a unit number
within the range 0 to 99 for each temperature controller connected to
the host device on the network. Default is “1”. When two or more
temperature controllers are used, do not set them to the same unit
number Doing so will prevent normal communications operation.
•
Baud rate (
bps
)
This parameter is for setting the baud rate when communicating with
the host device. Set one of "1.2 (1200 bps)", "2.4 (2400 bps)", "4.8 (4800
bps)", "9.6 (9600 bps)", "19.2 (19200 bps)", "38.4 (38400 bps)", or
“57.6 (57600 bps)➊”. All units must be set to the same baud rate.
•
Communications data length {
len
)
This parameter is for setting the communications data length. Set either
of "7 bits" or "8 bits". All units must be set to the same communications
data length.
•
Communications stop bit (
sbit
)
This parameter is for setting the communications stop bit. Set either of
"1" or "2". All units must be set to the same communications stop bit
value.
•
Communications parity (
prty
)
This parameter is for setting the communications parity. Set one of
"none", "even" or "odd". All units must be set to the same
communications parity value.
•
Send Data Wait Time (
sdwt
)
The send data wait time can be set in 1-ms increments between 0 and
99 ms. The default is 20 ms.
➊
Offered with 900-TC8, 900-TC16, and 900-TC32 Series B controllers.