LD400400 Red Lion Controls, LD400400 Datasheet - Page 14

• Manufacturer Part Number: LD400400
• Description: COUNTER 4 DIGIT 4.0" 120VAC RED
• Manufacturer: Red Lion Controls
• Series: LDr
• Type: Counterr

Specifications of LD400400

• Count Rate: 35kHz
• Number Of Digits/alpha: 4
• Input Type: Voltage
• Voltage - Supply: 11 V ~ 16 VDC, 85 V ~ 250 VAC
• Display Type: LED Red
• No. Of Digits / Alpha: 4
• Digit Height: 101mm
• Power Consumption: 26VA
• Counting Speed: 25kHz
• Operating Temperature Range: 0°C To +50°C
• Signal Input Type: Pulse
• Character Size: 4"
• Ip/nema Rating: IP65 / NEMA 4X
• Connection Type: Wire Leads
• Dimensions: 20"L×2.25"W×7.875"H
• Display Digit Height: 4 "
• Function: Counter
• Material, Casing: Aluminum
• Number Of Digits: 6
• Primary Type: Electronic
• Special Features: RS485/RS232 Communications
• Termination: Terminal Block
• Voltage, Supply: 85 to 250/11 to 16 VAC/VDC
• Counter Supply Voltage: 85-250VAC/11-16VDC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• Lead Free Status / Rohs Status: RoHS Compliant part
• Other names: RLC118

Receiving Data From The Meter
(T), a block print request command (P) or a User Input print request. The
response from the meter is either a full field transmission or an abbreviated
transmission, depending on the selection chosen in Module 5.
Full Field Transmission
* These characters only appear in the last line of a block print.
Copy Connections:
To connect the LD meters for copying, refer to section 3.5 Serial Wiring for
1. RS232 - Allows copying from the master meter to a single receiver only.
2. RS485 - Allows copying from the master meter to one or more receivers
Sending Serial Commands and Data
command character must be constructed. A command string consists of a
command character, a value identifier, numerical data (if writing data to the
meter) followed by a command terminator character, * or $.
Command Chart
Command String Construction
does not respond with an error message to illegal commands. The following
procedure details construction of a command string:
1. The first 2 or 3 characters consist of the Node Address Specifier (N) followed
2. After the optional address specifier, the next character is the command
3. The next character is the register ID. This identifies the register that the
4. If constructing a value change command (writing data), the numeric data is
5. All command strings must be terminated with the string termination
Command
Data is transmitted from the meter in response to either a transmit command
7-18
set to 9600 baud. This is the factory default setting, so a new meter should
arrive ready for copying. The meter sending the program settings (master)
should be set to the desired baud rate for the application (if different than
9600). This baud rate setting will then be copied to the receiver(s).
details. The meter shown in the figures as LD METER will be the master.
simultaneously. Up to 31 receiving meters can be connected during copying.
When sending commands to the meter, a string containing at least one
Byte
1, 2
The command string must be constructed in a specific sequence. The meter
by a 1 or 2 character node address number. The node address number of the
meter is programmable. If the node address is 0, this command and the node
address itself may be omitted. This is the only command that may be used in
conjunction with other commands.
character.
command affects. The P command does not require a register ID character. It
prints all the active selections chosen in the Print Options menu parameter.
sent next.
characters * or $. The meter does not begin processing the command string
until this character is received. See timing diagram figure for differences in
meter response time when using the * and $ terminating characters.
4-6
19
20
21
22
23
3
N
V
R
P
T
Description
2 byte Node Address field [00-99]
<SP> (Space)
3 byte Register Mnemonic field
12 byte data field; 10 for number, one for sign, one for decimal point
<CR> (carriage return)
<LF> (line feed)
<SP>* (Space)
<CR>* (carriage return)
<LF>* (line feed)
Description
Node (meter)
Address Specifier
Transmit Value (read)
Value Change (write)
Reset
Block Print Request
(read)
Notes
Address a specific meter. Must be followed
by one or two digit node address. Not
required when node address = 0.
Read a register from the meter. Must be
followed by a register ID character.
Write to register of the meter. Must be
followed by a register ID character and
numeric data.
Reset a count value or setpoint output. Must
be followed by a register ID character
Initiates a block print output. Registers in the
print block are selected in Print Options.
14
Copy Procedure:
1. Connect the master and receiver(s) using RS232 or RS485 terminals.
2. Apply power to the meters. The receiving meter(s) must be operating in the
3. On the master meter, proceed to the Copy Program Settings parameter and
4. During the copy process (~ 2 sec.), the master meter displays an upload message
5. When copying is completed, all receivers display the power-up sequence and
assigned is 0, two spaces are substituted. A space follows the meter address field.
The next three characters are the register mnemonic, as shown in the Register
Identification Chart.
characters long. When a requested counter or rate value exceeds the meter’s
display limits, an * (used as an overflow character) replaces a space in byte 7.
Byte 8 is always a space.
values), a floating decimal point (if applicable), and eight positions for the
requested value. The data within bytes 9 to 18 is right-aligned with leading
spaces for any unfilled positions.
last line of a block print, an extra <SP>, <CR> and <LF> are added to provide
separation between the print blocks.
Register Identification Chart
Command String Examples:
1. Node address = 17, Write 350 to the Setpoint 1 value
2. Node address = 5, Read Counter A, response time of 50 msec min
3. Node address = 0, Reset Setpoint 1 output
4. Node address = 31, Request a Block Print Output, response time of 2 msec min
Transmitting Data to the Meter
Register Identification Chart. Leading zeros are ignored. Negative numbers
must have a minus sign. The meter ignores any decimal point and conforms the
number to the scaled resolution. (For example: The meter’s scaled decimal point
position is set for 0.0 and 25 is written to a register. The value of the register is
now 2.5. In this case, write a value of 250 to equal 25.0).
Note: Since the meter does not issue a reply to value change commands, follow
ID
B
C
D
E
G
H
normal display mode (not programming mode).
select
(
indicates successful communication between the master and receiver(s).
return to normal operating mode, programmed with all the same settings as
the master meter. The master remains at the
receiver(s) to be connected for copying.
A
F
The first two characters transmitted are the meter address. If the address
The numeric data is transmitted next. The numeric field (bytes 7 to 18) is 12
The remaining ten positions of this field consist of a minus sign (for negative
The end of the response string is terminated with a <CR> and <LF>. After the
Numeric data sent to the meter must be limited to transmit details listed in the
with a transmit value command for readback verification.

Value Description
Counter A
Counter B
Rate
Scale Factor A
Scale Factor B
Setpoint 1
(Reset Output 1)
Setpoint 2
(Reset Output 2)
Counter A Count
Load Value
String: N17VF350*
String: N5TA*
String: RF*
String: N31P$

) while the receiver(s) displays a download message (
to begin copying.
MNEMONIC
CTB
RTE
SFB
CLD
CTA
SFA
SP1
SP2
Commands
Applicable
T, V, R
T, V, R
T, V, R
T, V, R
T, V, R
T, V
T, V
T

Transmit Details (T and V)
6 digit positive/5 digit
negative (with minus sign)
5 digit, positive only
5 digit, positive only
6 digit, positive only
6 digit, positive only
per setpoint Assignment,
same as Counter or Rate
per setpoint Assignment,
same as Counter or Rate
6 digit positive/5 digit
negative (with minus sign)
prompt, ready for another

). This