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64 UDC 3300 Process Controller Product Manual 4/00
3.18 Communications Set Up Group
Introduction
This data deals with the Communications option that is available with
your controller. This option allows the controller to be connected to a host
computer via an RS422/485 or Modbus protocol.
If your controller does not have this option the prompts will not appear.
Function prompts
Table 3-15 lists all the function prompts in the Communications Set Up
group.
Table 3-15 Communications Group Function Prompts
Function Prompt
Lower Display
Function
Name
Selections or
Range of Setting
Upper Display
Factory
Setting
Refer
to
ComSTATE
Communications Option
State
DISABL
MOD3K
MODBUS
RS422
DISABL
Section
4.14
Com ADDR
Communications Station
Address
1 to 99 0
ComADDR2
Loop 2 Communications
Station Address
1 to 99
When ComSTATE = MODBUS,
ComADDR2 = Com ADDR
0
SHEDENAB
Shed Enable DISABL
ENABL
DISABL
SHEDTIME
Shed Time 0 to 255 sample periods
(1 sample period = 0.333 seconds)
0 = No Shed
0
PARITY
Parity ODD
EVEN
Fixed at NONE when ComSTATE =
MODBUS
ODD
BAUD
Baud Rate 2400
4800
9600
19200
2400
DUPLEX
Duplex Operation HALF
FULL
ATTENTION
• When ComSTATE = MODBUS,
this selection is fixed at HALF.
• When the RS422/485/Auxiliary
output option board is installed, this
selection is fixed at HALF.
HALF