PAXDR000 Red Lion Controls, PAXDR000 Datasheet - Page 9

• Manufacturer Part Number: PAXDR000
• Description: AC, Dual Rate, Upgradeable Red
• Manufacturer: Red Lion Controls
• Type: Rate/Totalizerr

Specifications of PAXDR000

• Accuracy: ± (0.01% of Input Signal Frequency)
• Cut Out, Panel: 3.62W x 1.77H Inches
• Dimensions: 3.80W x 1.95H Inches
• Display Digit Height: .56 Inches
• Display Type: LED Adjustable
• Function: Rate/Totalizer
• Input Type: Switch Selectable Pulse
• Keypad Type: 3 Programmable Function (5 Keys Total)
• Number Of Digits: Rate = 5, Totalizer = 8
• Primary Type: Electronic
• Range, Measurement: Rate = 0 to 99999, Totalizer = ±99999999
• Special Features: Programmable Function Keys
• Termination: Cage Clamp
• Voltage, Supply: 85 to 250 VAC
• Lead Free Status / Rohs Status: RoHS Compliant part

4.5 SERIAL COMMUNICATION WIRING
RS232 Communications
50 feet. Data Terminal Equipment (DTE) transmits data on the Transmitted Data
(TXD) line and receives data on the Received Data (RXD) line. Data Computer
Equipment (DCE) receives data on the TXD line and transmits data on the RXD
line. The PAX emulates a DTE. If the other device connected to the meter also
emulates a DTE, the TXD and RXD lines must be interchanged for
communications to take place. This is known as a null modem connection. Most
printers emulate a DCE device while most computers emulate a DTE device.
without a pause in between. In these cases, the meter employs a busy function.
determine if the receiving device is “busy”. The receiving device asserts that it
is busy by setting the RXD line to a space condition (logic 0). The meter then
suspends transmission until the RXD line is released by the receiving device.
4.6 ANALOG OUTPUT WIRING
5.0 R
RS232 is intended to allow two devices to communicate over distances up to
Some devices cannot accept more than two or three characters in succession
As the meter begins to transmit data, the RXD line (RS232) is monitored to
ANALOG OPTION CARD FIELD TERMINALS
PAX METER (DTE)
** Factory setting for the F1 F2 and RST keys is NO mode.
* Totalizer A, B, and C are locked out in Factory Settings.
KEY
DSP
PAR
F1
F2
RST
FEMALE
RS232 Terminal Block Connection Figure
9
6


Extended Comms Connection Figure
5
EVIEWING THE
1
DISPLAY MODE OPERATION
Index display through the selected displays.
Access Programming Mode
Function key 1; hold for 3 seconds for Second Function 1 **
Function key 2; hold for 3 seconds for Second Function 2 **
Reset (Function key) **
12
13
14
15
TXD
RXD
COMM.
NC
RXD
TXD
Annunciators*
Totalizer
PIN 2 TXD
PIN 3 RXD
PIN 5 COMMON
Display
RECEIVING DEVICE
DB25
DCE
2
3
5
DB25
DTE
3
2
7
A
B
C
8. 8 . 8 . 8 . 8 . 8 .
DTE
SP1
DB9
DSP
F
2
3
5
RONT
PAR
SP2
F1
SP3
9
F2
RS485 Communications
devices on a single pair of wires, distances up to 4,000 ft. and data rates as high
as 10M baud (the PAX is limited to 19.2k baud). The same pair of wires is used
to both transmit and receive data. RS485 is therefore always half-duplex, that
is, data cannot be received and transmitted simultaneously.
The RS485 communication standard allows the connection of up to 32
SP4
B
RST
PAX CONNECTOR
UTTONS AND
PROGRAMMING MODE OPERATION
Quit programming and return to Display Mode
Store selected parameter and index to next parameter
Increment selected parameter value or selections
Decrement selected parameter value or selections
Advances selected digit location in parameter values
Transmit
Transmit
Enable
Enable
2
3
RS485 Terminal Block Connection Figure
Setpoint Alarm
Annunciators
4
List B Active
Indicator
5
Extended Comms Connection Figure
PAX METER
PAX METER
+5V
+5V
33K
33K
33K
33K
12
12
13
13
14
14
15
15
B(
A(+)
NC
NC
COMM.
COMM.
(+)
-
)
*
RECEIVING DEVICE
RECEIVING DEVICE
D
* OPTIONAL
OPTIONAL
ISPLAY