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Module 7 - s, Srl baud data, Par addr pro inp tot hilo spnt opt abrv – Red Lion PAXCDC1,2 (RS232/RS485) User Manual

Page 3: Erial, Ommunications, Arameters

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





DATA BIT









ABBREVIATED PRINTING

PRINT OPTIONS





PARITY BIT



METER ADDRESS






















to











Input Value





Max and Min Values





Total Value









It is necessary to match the PAX meter’s serial communications parameters

to the host’s parameters before communications can be established. This is
accomplished by using the PAX front panel keys to enter



.

7-SrL

bAUd

dAtA

PAR

PAr

Addr

Pro

INP

tot

HILO

SPNt

OPt

Abrv

NO

YES

Baud Rate

Meter

Address

Parity Bit

Data Bit

Print

Setpoint

Values

Print

Max & Min

Values

Print

Input Value

Print

Total Value

Print

Options

Abbreviated

Printing

PAR

MODULE 7 - S

ERIAL

C

OMMUNICATIONS

P

ARAMETERS

(



)

PARAMETER MENU

BAUD RATE

Setpoint values*

Indicates Program Mode Alternating Display.

Factory Settings are shown.





Parameter

Selection/Value

Set the baud rate to match that of other serial communications equipment.

Normally, the baud rate is set to the highest value that all of the serial
communications equipment is capable of transmitting.

Select either 7 or 8 bit data word lengths. Set the word length to match that

of other serial communication equipment. Since the meter receives and
transmits 7-bit ASCII encoded data, 7 bit word length is sufficient to request
and receive data from the meter.

Set the parity bit to match that of the other serial communications equipment

used. The meter ignores the parity when receiving data, and sets the parity bit
for outgoing data. If no parity is selected with 7-bit word length the meter
transmits and receives data with 2 stop bits. (For example: 10 bit frame with
mark parity)

Enter the serial node address. With a single unit on a bus, an address is not

needed and a value of zero can be used (RS232 applications). Otherwise, with
multiple bussed units, a unique address number must be assigned to each meter.
The node address applies specifically to RS485 applications.

Select abbreviated transmissions (numeric only) or full field transmission.

When the data from the meter is sent directly to a terminal for display, the extra
characters that are sent identify the nature of the meter parameter displayed. In
this case, select



. When the data from the meter goes to a computer, it may be

desirable to suppress the node address and mnemonic when transmitting. In this
case, set this parameter to



.



- Enters the sub-menu to select those meter parameters to appear in the

block print. For each parameter in the sub-menu select



for the parameter to

appear with the block print, and



to disable the parameter.

*Setpoints 1-4 are setpoint plug-in card dependent.