Red Lion PAX2A - Manual (Page 22)

22
Pro
NO
Pro
7-SErIAL
P
USb
CONFIG
SRL
USB
Setup
tYPE
MbASC
Comms
Type
dAtA
8
SRL
Data Bit
bAUd
38400
SRL
Baud Rate
PArItY
NO
SRL
Parity Bit Meter
Address
Addr
247
SRL dELAY
0.010
SRL
Transmit
Delay
Abrv
NO
SRL
Abbreviated
Printing
SRL OPt
NO
Print
Options
SRL
mOdule 7 - s
erial
C
OmmuniCaTiOns
p
arameTers
(7-SErIAL)
PARAMETER MENU
USB SETUP
CONFIG Port
CONFIG – Configures USB with settings required to operate with Crimson
configuration software. This will automatically internally configure the
PAX2A to use ModBus RTU protocol, 38400 baud, 8 bits, and unit address
of 247 when a USB cable is attached to PAX2A and PC. The serial port
settings shown in 7- SErIAL (this module) will not change, or show this.
Port – Configures USB to utilize serial settings and protocol as configured in
“7- SErIAL” (this module).
COMMUNICATIONS TYPE
MbASC - ModBus ASCII
rLC - RLC Protocol (ASCII)
Mbrtu - ModBus RTU
Select the desired communications protocol. Modbus is preferred as it
provides access to all meter values and parameters. Since the Modbus protocol
is included within the PAX2A, the PAX Modbus option card, PAXCDC4, should
not be used. The PAXCDC1 (RS485), or PAXCDC2 (RS232) card should be
used instead.
BAUD RATE
1200 4800 19200
2400 9600 38400
Set the baud rate to match the other serial communications equipment on the
serial link. Normally, the baud rate is set to the highest value that all the serial
equipment are capable of transmitting and receiving.
DATA BIT
7 8
Select either 7 or 8 bit data word lengths. Set the word length to match the
other serial communications equipment on the serial link.
PARITY BIT
NO EUEN Odd
Set the parity bit to match that of the other serial communications equipment
on the serial link. The meter ignores the parity when receiving data and sets the
parity bit for outgoing data. If no parity is selected with 7 bit word length, an
additional stop bit is used to force the frame size to 10 bits.
METER UNIT ADDRESS
0 to 99 - RLC Protocol
1 to 247 - ModBus
Select a Unit Address that does not match an address number of any other
equipment on the serial link.
TRANSMIT DELAY
0.000 to 0.250 seconds
Following a transmit value (“*” terminator) or Modbus command, the
PAX2A will wait this minimum amount of time in seconds before issuing a
serial response
The following programming steps are only available when Communications Type
(
tYPE ) is programmed for rLC .
ABBREVIATED PRINTING
NO YES
Select YES for full print or Command T transmissions (meter address,
mnemonics and parameter data) or NO for abbreviated print transmissions
(parameter data only). This will affect all the parameters selected in the print
options. If the meter address is 00, it will not be sent during a full transmission.
PRINT OPTIONS
NO YES
YES - Enters the sub-menu to select the meter parameters to appear during a print
request. For each parameter in the sub-menu, select YES for that parameter
information to be sent during a print request or NO for that parameter
information not to be sent. A print request is sometimes referred to as a block
print because more than one parameter information (meter address, mnemonics
and parameter data) can be sent to a printer or computer as a block.
DISPLAY DESCRIPTION
FACTORY
SETTING
MNEMONIC
INPUt Signal Input YES INP
totAL Total Value NO TOT
HILO Max & Min NO MAX, MIN
SPNt Setpoint Values NO SP1-SP4
USb
CONFIG
SRL
tYPE
MbASC
SRL
bAUd
38400
SRL
dAtA
8
SRL
PArItY
NO
SRL
Addr
247
SRL
dELAY
0.010
SRL
Abrv
NO
SRL
OPt
NO
SRL
Programming information contained in this manual supercedes all programming
information included with the PAXCDC card.