Мн о, 7 module 7 - s, Alternate setpoints – Red Lion PAXDP User Manual
Page 20: Erial, Ommunications, Arameters
20
BAUD RATE
Set the baud rate to match the other serial communications equipment on the
serial link. Normally, the baud rate is set to the highest value that all the serial
equipment are capable of transmitting and receiving.
DATA BIT
Select either 7 or 8 bit data word lengths. Set the word length to match the
other serial communications equipment on the serial link.
PARITY BIT
Set the parity bit to match that of the other serial communications equipment
on the serial link. 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, an
additional stop bit is used to force the frame size to 10 bits.
METER UNIT ADDRESS
Enter the serial meter (node) address. The address range is dependent on the
parameter. With a single unit, configured for RLC protocol (
=
), an address is not needed and a value of zero can be used. With multiple
units (RS485 applications), a unique 2 digit address number must be assigned
to each meter.
7-SrL
bAUd
tYPE
dAtA
dELAY
INP A
PAR
Communications
Type
Baud Rate
Transmit
Delay
PAr
Addr
Meter
Address
INP b
Parity Bit
Data Bit
Pro
Print Setpoint
Values
Input B
CALC
Max/Min
Calculation
tot
HILO
Total
SPNt
Input A
Options
OPt
Abbreviated
Printing
Abru
RLC MODE ONLY
NO
YES
PARAMETER MENU
to
(RLC Protocol)
to
(Modbus)
Select the desired communications protocol. Modbus is preferred as it
provides access to all meter values and parameters. Since the Modbus protocol
is included within the PAXDP, the PAX Modbus option card, PAXCDC4,
should not be used. The PAXCDC1 (RS485), or PAXCDC2 (RS232) card
should be used instead.
COMMUNICATIONS TYPE
- RLC Protocol (ASCII)
- Modbus RTU
†
- Modbus ASCII
†
The Communication Type factory settings must be changed from the
Modbus RTU for Crimson 2 communications.
SETPOINT ANNUNCIATORS
The
mode disables display setpoint annunciators. The
mode
displays the corresponding setpoint annunciators of “on” alarm outputs. The
mode displays the corresponding setpoint annunciators of “off” alarms
outputs. The
mode flashes the corresponding setpoint annunciators of
“on” alarm outputs.
Alternate Setpoints
An Alternate list of setpoint values can be stored and recalled as needed. The
Alternate list allows an additional set of setpoint values. (The setpoint numbers
nor rear terminal numbers will change in the Alternate list.) The Alternate list
can only be activated through a function key or user input programmed for
in Module 2. When the Alternate list is selected, the Main list is stored and
becomes inactive. When changing between Main and Alternate, the alarm state
of Auto Reset Action alarms will always follow their new value. Latched “on”
alarms will always stay latched during the transition and can only be reset with
a user input or function key. Only during the function key or user input
transition does the display indicate which list is being used.
Ñ
- A communication card must be installed in order to access this
module.
6.7 mOdule 7 - s
erial
C
OmmuniCaTiOns
p
arameTers
(
) Ñ
ALARM
STATE
OFF
ON
Hys
SP
OFF
ON
OFF
OFF
ON
OFF ON
OFF
OFF
ON
OFF
ON
OFF
MANUAL
RESET
SP - Hys
( Auto)
(LAtC1)
(LAtC2)
м
н
о
Setpoint Alarm Reset Actions
When
, the alarm is disabled (after a power up) until the trigger point is
crossed. Once the alarm is on, the alarm operates normally per the Setpoint
Action and Reset Mode.
STANDBY OPERATION