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Configuration, Startup, and Operation
of Recorder with Display
12/03 DR4300 Circular Chart Recorder Product Manual 111
4.3.17 Communication Set Up Group
Introductions
If the hardware supports the Modbus communication option, use the prompts in the communication set up
group to configure communication parameters.
Communication group prompts
Table 4-15 lists the function prompt in the communication set up group.
For a 2-pen recorder, the desired input channel is displayed on the left side of the operator interface. Press
FUNC
to select channel.
Press SETUP
key until “COMM” appears in the lower display.
Press FUNC
key to select the parameter.
ATTENTION
Each pen channel must have its own unique address. However, set the same baud rate and
transmitter delay for both pens.
Table 4-15 Communication Parameter Definitions
Lower Display
Prompt
Upper Display
Range of Setting
or Selection
Parameter
Definition
COMM
DIS [factory setting]
ENAB
COMMUNICATION ENABLE—Enable/disable
communication.
ADDRES
1 to 99
[factory setting = 0]
ADDRESS—Specify the pen channel’s address on the
network.
BAUD
300
600
1200
2400
4800
9600
[factory setting]
192K
BAUD RATE—Specify the baud rate used by all devices
on the network.
XmtDLY
NONE [factory setting]
10ms
20ms
30ms
40ms
50ms
TRANSMITTER DELAY—Specify the minimum delay
between the end of a received message and the start of
the response message.
DBLBYT
FP B
FP BB
FP L
FP LB
DOUBLE BYTE ORDER—Determines Floating Point
Byte order in Modbus queries.
Big Endian
Big Endian – Byte Swapped
Little Endian
Little Endian – Byte Swapped