PAXDR000 Red Lion Controls, PAXDR000 Datasheet - Page 25

• 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

Auto/Manual Mode Register (MMR) ID: U
meter controls the setpoint and analog output. In Manual Mode (1) the outputs
are defined by the registers SOR and AOR. When transferring from auto mode
to manual mode, the meter holds the last output value (until the register is
changed by a write). Each output may be independently changed to auto or
manual. In a write command string (VU), any character besides 0 or 1 in a field
will not change the corresponding output mode.
Example: Address = 0, place SP4 and Analog in manual mode
Analog Output Register (AOR) ID: W
of values of this register is 0 to 4095, which corresponds to the analog output
range per the following chart:
COMMAND RESPONSE TIME
operation). During RS232 transmissions, the meter ignores commands while
transmitting data, but instead uses RXD as a busy signal. When sending
commands and data to the meter, a delay must be imposed before sending
another command. This allows enough time for the meter to process the
command and prepare for the next command.
string to the com port, thus initiating a transmission. During t
characters are under transmission and at the end of this period, the command
terminating character (* or $) is received by the meter. The time duration of t
is dependent on the number of characters and baud rate of the channel.
command and when complete, performs the command function. This time
interval t
expected, the meter is ready to accept another command.
of the command terminating character. The ‘*’ terminating character results in
a response time window of 50 msec. minimum and 100 msec. maximum. This
allows sufficient time for the release of the sending driver on the RS485 bus.
Terminating the command line with ‘$’ results in a response time window (t
of 2 msec. minimum and 50 msec. maximum. The faster response time of this
terminating character requires that sending drivers release within 2 msec. after
the terminating character is received.
character of the reply. As with t
number of characters and baud rate of the channel. At the end of t
ready to receive the next command.
times t
Register Value
This register sets the controlling mode for the outputs. In Auto Mode (0) the
U abcde
This register stores the present signal value of the analog output. The range
The meter can only receive data or transmit data at any one time (half-duplex
At the start of the time interval t
At the start of time interval t
If the meter is to reply with data, the time interval t
At the beginning of time interval t
The maximum serial throughput of the meter is limited to the sum of the
2047
4094
4095
0
1
1
, t
String: VU00011*
2
2
varies (See Timing Diagrams). If no response from the meter is
and t
e = Analog Output
d = SP4
c = SP3
b = SP2
a = SP1
3
.
0-20 mA
10.000
19.995
20.000
0.000
0.005
t
3
= (10 times the # of characters) / baud rate
t
1
= (10 times the # of characters) / baud rate
Output Signal*
4-20 mA
12.000
19.996
20.000
4.000
4.004
1
, the time duration of t
2
, the meter starts the interpretation of the
1
, the computer program prints or writes the
0.0025
9.9975
10.000
3
0.000
5.000
0-10V
, the meter responds with the first
*Due to the absolute
accuracy
resolution of the output
card, the actual output
signal may differ 0.15% FS
from the table values. The
output signal corresponds
to the range selected (0-20
mA, 4-20 mA or 0-10 V).
2
is controlled by the use
3
is dependent on the
1
, the command
3
rating
, the meter is
and
2
1
)
25
25
causes the output signal level to update immediately to the value sent. While in
the Automatic Mode, this register may be written to, but it has no effect until the
analog output is placed in the manual mode. When in the Automatic Mode, the
meter controls the analog output signal level. Reading from this register (TW)
will show the present value of the analog output signal.
Example: Address = 0, Analog output previously programmed for Manual Mode
Setpoint Output Register (SOR) ID: X
register (TX) will show the present state of all the setpoint outputs. A “0” in the
setpoint location means the output is off and a “1” means the output is on.
Mode, writing to this register (VX) will change the output state. Sending any
character besides 0 or 1 in a field or if the corresponding output was not first in
manual mode, the corresponding output value will not change. (It is not
necessary to send least significant 0s.)
Example: Address = 0, SP1 and SP2 previously programmed for Manual Mode
SERIAL TIMING
Writing to this register (VW) while the analog output is in the Manual Mode
This register stores the states of the setpoint outputs. Reading from this
X abcd
In Automatic Mode, the meter controls the setpoint output state. In Manual
COMMAND
String: VW2047* will result in an output of 10.000 mA, 12.000 mA or
String: VX10* will result in output 1 on and output 2 off.
R
V
P
T
5.000 V depending on the range selected.
d = SP4
c = SP3
b = SP2
a = SP1
COMMENT
Reset
Write
Transmit
Print
NO REPLY FROM METER
RESPONSE FROM METER
Timing Diagrams
PROCESS TIME (t
2-50 msec.
100-200 msec.
2-50 msec. for $
50-100 msec. for *
2-50 msec. for $
50-100 msec. for *
2
)