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参数资料
| 型号： | PAXTM100 |
| 厂商： | Red Lion Controls |
| 文件页数： | 26/36页 |
| 文件大小： | 0K |
| 描述： | TIMER DISPLAY 1/8 DIN PRESET 6 D |
| 标准包装： | 1 |
| 系列： | PAXTM |
| 其它名称： | Q1652815 |
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ID
Value Description
Applicable Commands/Comments
A
Input
INP
T, P, R
B
Total
TOT
T, P, R
C
Max Input
MAX
T, P, R
SendingCommandsandData
When sending commands to the meter, a string containing at least one
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 the command terminator character * or $.
Command Chart
Command Description Notes
Register Identification Chart
Register
ID
(Reset command [Ver2.5+]
zeros the input [“REL” or Tare])
(Reset command resets total to
zero)
(Reset command resets MAX to
current reading)
N
T
V
R
P
Node Address
Specifier
Transmit Value (read)
Value change (write)
Reset
Block Print Request
(read)
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 register ID character.
Write to register of the meter. Must be
followed by register ID character and numeric
data.
Reset a register or output. Must be followed
by register ID character
Initiates a block print output. Registers are
defined in programming.
D
E
F
G
H
I
J
Min Input
Setpoint 1
Setpoint 2
Setpoint 3
Setpoint 4
Analog Output
Register
Control Status
Register
MIN
SP1
SP2
SP3
SP4
AOR
CSR
T, P, R
T, P, V, R
T, P, V, R
T, P, V, R
T, P, V, R
T, V
T, V
(Reset command resets MIN to
current reading)
(Reset command resets the
setpoint output)
(Reset command resets the
setpoint output)
(Reset command resets the
setpoint output)
(Reset command resets the
setpoint output)
(Applies to manual mode)
L
Absolute (gross)
input display value
ABS
GRS ?
T, P
Q
Offset/Tare (PAXS)
OFS
TAR ?
T, P, V
(Ver 2.5+)
? -Register ID for the PAXS.
1-12
Command String Construction
The command string must be constructed in a specific sequence. The meter
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
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.
2. After the optional address specifier, the next character is the command character.
3. The next character is the register ID. This identifies the register that the
command affects. The P command does not require a register ID character. It
prints according to the selections made in print options.
4. If constructing a value change command (writing data), the numeric data is
sent next.
5. All command strings must be terminated with the string termination
characters * or $. The meter does not begin processing the command string
until this character is received. See timing diagram figure for differences of *
and $ terminating characters.
Receiving Data
Data is transmitted by the meter in response to either a transmit command (T),
a print block command (P) or User Function print request. The response from
the meter is either a full field transmission or an abbreviated transmission. In this
case, the response contains only the numeric field. The meter response mode is
established in programming.
Full Field Transmission
Byte Description
1, 2 2 byte Node Address field [00-99]
3 <SP> (Space)
Command String Examples:
1. Node address = 17, Write 350 to Setpoint 1, response delay of 2 msec min
String: N17VE350$
2. Node address = 5, Read Input value, response delay of 50 msec min
String: N5TA*
3. Node address = 0, Reset Setpoint 4 output, response delay of 50 msec min
String: RH*
Sending Numeric Data
Numeric data sent to the meter must be limited to 5 digits (-19,999 to 99,999).
If more than 5 digits are sent, the meter accepts the last 5. 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 = 0.0 and 25 is written to a register.
The value of the register is now 2.5 In this case, write a value = 25.0).
Note: Since the meter does not issue a reply to value change commands, follow
with a transmit value command for readback verification.
The end of the response string is terminated with a carriage return <CR> and
<LF>. When block print is finished, an extra <SP><CR> <LF> is used to
provide separation between the blocks.
Abbreviated Transmission
Byte Description
12 byte data field, 10 bytes for number, one byte for sign,
one byte for decimal point
13 <CR> carriage return
14 <LF> line feed
15 <SP>* (Space)
4-6
3 byte Register Mnemonic field
16
<CR>* carriage return
7-18
19
12 byte data field; 10 bytes for number, one byte for sign, one byte for
decimal point (The T command may be a different byte length)
<CR> carriage return
17 <LF>* line feed
* These characters only appear in the last line of a block print.
20 <LF> line feed
21 <SP>* (Space)
22 <CR>* carriage return
23 <LF>* line feed
* These characters only appear in the last line of a block print.
The first two characters transmitted are the node address, unless the node address
assigned =0, in which case spaces are substituted. A space follows the node address
field. The next three characters are the register ID (Serial Mnemonic).
The numeric data is transmitted next. The numeric field is 12 characters long
(to accommodate the 10 digit totalizer), with the decimal point position floating
within the data field. Negative value have a leading minus sign. The data field
is right justified with leading spaces.
26
The abbreviated response suppresses the node address and register ID,
leaving only the numeric part of the response.
Meter Response Examples:
1. Node address = 17, full field response, Input = 875
17 INP 875 <CR><LF>
2. Node address = 0, full field response, Setpoint 2 = -250.5
SP2 -250.5<CR><LF>
3. Node address = 0, abbreviated response, Setpoint 2 = 250, last line of block
print
250<CR><LF><SP><CR><LF>
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