Bulletin No. PAXCK-J
Released 2018-05-15
Drawing No. LP0524
-21-
OPTIONS
This parameter selects the meter values transmitted in response to a
Print Request. A Print Request is sometimes referred to as a block print
because more than one parameter can be sent to a printer or computer
as a block.
Selecting
displays a sublist for choosing the meter parameters to
appear in the block print. All parameters entered as
in the sublist will be
transmitted during a block print. Parameters entered as
will not be sent.
* These values are option card dependent.
DISPLAY
PARAMETER
FACTORY
MNEMONIC
Timer
TMR
Cycle Counter
CNT
RTC Date *
DAT
RTC Time *
TIM
Setpoint Values *
SP1 SP2 SP3 SP4
Setpoint Off/Time-Out Values *
SO1 SO2 SO3 SO4
Timer/Cnt Start & Stop Values
TST TSP CST CSP
SERIAL
RTC
MASTER
ADDRESSING
A meter, having software code version 2.3 or greater, with a Real Time
Clock Card and an RS485 Serial Communication Card installed, can act
as a Serial RTC Master, when programmed with meter address 98 or 99.
With this feature, whenever the Master meter's time, date or day is
changed, through quick or main programming, it will transmit and make
the same change to the other PAXCK's on the RS485 bus. Only one
meter should be configured as Master. This Master, with address 98 or
99, should also be programmed as the “Host” in module
under
Clock Synchronization. With it programmed as Host, the other PAXCK
Slaves will update hours, minutes and seconds to the Host once an hour
and the Real-Time Clock Wiring (terminals 16-18) will not be necessary.
Meter addresses 98 and 99 are distinguished as follows:With address
98, the meter will transmit the change to all meters on the RS485 bus
addressed as “0”. This is useful when using both newer or older software
code version meters, or when another master (computer, operator
interface) is not being used.
With address 99, the meter will transmit the change to all, software
code version 2.3 or greater, meters on the RS485 bus using a global
broadcast address suffix. This is useful when it is necessary to have
unique or other than 0 serial meter addresses or when having a computer
or operator interface connected.
SENDING
SERIAL
COMMANDS
AND
DATA
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
String
Construction
The command string must be constructed in a specific sequence. The
meter does not respond with an error message to invalid commands.
The following procedure details construction of a command string:
1. The first characters consist of the Node Address Specifier (N) followed
by a 1 or 2 character address number. The address number of the
meter is programmable. If the node address is 0, this command and
the node address itself may be omitted. The address suffix , “?” is the
global broadcast address specifier. A command string that is sent with
N? prefix will be accepted by all PAXCKs on the RS485 network
(software code version 2.3 or greater). This is useful for setting all
meters to the current time, date or day that may have unique meter
addresses on a bus. It is important not to send (P)rint or (T)ransmit
commands using N? prefix, as it will result in multiple meters
responding at the same time. 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 the
options. If constructing a value change command (writing data), the
numeric data is sent next.
4. 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 between terminating characters.
Note: On a change value command (V), if the command string is terminated with the
* character, all values are stored in E
2
PROM
memory. Values are not stored if
the $ terminator is used.
Register
Identification
Chart
1. Register Names are also used as Register Mnemonics during full
transmission.
2. The registers associated with the P command are set up in Print
Options (Module 7).
3. Unless otherwise specified, the Transmit Details apply to both T and V
Commands.
COMMAND
DESCRIPTION
NOTES
N
Node (Meter)
Address Specifier
Address a specific meter. Must be followed by
node address. Not required when address = 00.
T
Transmit Value
(read)
Read a register from the meter. Must be
followed by register ID character.
V
Value Change (write)
Write to register of the meter. Must be followed
by register ID character and numeric data.
R
Reset
Reset a register or output. Must be followed by
register ID character.
P
Block Print Request
(read)
Initiates a block print output. Registers are
defined in programming.
ID VALUE DESCRIPTION
REGISTER
NAME
1
COMMAND
2
TRANSMIT
DETAILS
3
A Time Value
TMR
T, V, R
6 digit
B Cycle Counter Value
CNT
T, V, R
6 digit
C RTC Time Value
TIM
T, V
6 digit
D RTC Date Value
DAT
T, V
6 digit
E Setpoint 1
SP1
T, V, R
6 digit
F Setpoint 2
SP2
T, V, R
6 digit
G Setpoint 3
SP3
T, V, R
6 digit
H Setpoint 4
SP4
T, V, R
6 digit
I
Setpoint 1 Off Value
SO1
T, V
6 digit
J
Setpoint 2 Off Value
SO2
T, V
6 digit
K Setpoint 3 Off Value
SO3
T, V
6 digit
L
Setpoint 4 Off Value
SO4
T, V
6 digit
M Timer Start Value
TST
T, V
6 digit
O Cycle Counter Start Value
CST
T, V
6 digit
Q Timer Stop Value
TSP
T, V
6 digit
S Cycle Counter Stop Value
CSP
T, V
6 digit
U Auto/Man Register
MMR
T, V
0 - auto, 1 - manual
W Day of Week Value
DAY
T, V
1 = Sun....7 = Sat
X Setpoint Register
SOR
T, V
0 - not active,
1 - active
