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WARNING: Disconnect all power to the unit before

installing Plug-in cards.

Adding Option Cards

The PAX and MPAX series meters can be fitted with up to three optional plug-

in cards. The details for each plug-in card can be reviewed in the specification
section below. Only one card from each function type can be installed at one time.
The function types include Setpoint Alarms (PAXCDS), Communications
(PAXCDC), and Analog Output (PAXCDL). The plug-in cards can be installed
initially or at a later date.

PAXH Isolation Specifications For All Option Cards

Isolation To Sensor Commons

: 1400 Vrms for 1 min.

Working Voltage: 125 V

Isolation to User Input Commons

: 500 Vrms for 1 min.

Working Voltage 50 V

COMMUNICATION CARDS (PAXCDC)

A variety of communication protocols are available for the PAX and MPAX

series. Only one of these cards can be installed at a time. When programming
the unit via RLCPro, a Windows

based program, the RS232 or RS485 Cards

must be used.

SERIAL COMMUNICATIONS CARD

Type

: RS485 or RS232

Isolation To Sensor & User Input Commons

: 500 Vrms for 1 min.

Working Voltage: 50 V. Not Isolated from all other commons.

Data

: 7/8 bits

Baud

: 300 to 19,200

Parity

: no, odd or even

Bus Address

: Selectable 0 to 99, Max. 32 meters per line (RS485)

Transmit Delay

: Selectable for 2 to 50 msec or 50 to 100 msec (RS485)

DEVICENET™ CARD

Compatibility

: Group 2 Server Only, not UCMM capable

Baud Rates

: 125 Kbaud, 250 Kbaud, and 500 Kbaud

Bus Interface

: Phillips 82C250 or equivalent with MIS wiring protection per

DeviceNet™ Volume I Section 10.2.2.

Node Isolation

: Bus powered, isolated node

Host Isolation

: 500 Vrms for 1 minute (50 V working) between DeviceNet™

and meter input common.

MODBUS CARD

Type

: RS485; RTU and ASCII MODBUS modes

Isolation To Sensor & User Input Commons

: 500 Vrms for 1 minute.

Working Voltage: 50 V. Not isolated from all other commons.

Baud Rates

: 300 to 38400.

Data

: 7/8 bits

Parity

: No, Odd, or Even

Addresses

: 1 to 247.

Transmit Delay

: Programmable; See Transmit Delay explanation.

PROFIBUS-DP CARD

Fieldbus Type:

Profibus-DP as per EN 50170, implemented with Siemens

SPC3 ASIC

Conformance:

PNO Certified Profibus-DP Slave Device

Baud Rates:

Automatic baud rate detection in the range 9.6 Kbaud to 12 Mbaud

Station Address:

0 to 126, set by the master over the network. Address stored

in non-volatile memory.

Connection:

9-pin Female D-Sub connector

Network Isolation:

500 Vrms for 1 minute (50 V working) between Profibus

network and sensor and user input commons. Not isolated from all other
commons.

PROGRAMMING SOFTWARE

The Crimson

software is a Windows

based program that allows

configuration of the PAX

meter from a PC. Crimson offers standard drop-down

menu commands, that make it easy to program the meter. The meter’s program
can then be saved in a PC file for future use. A PAX

serial plug-in card is

required to program the meter using the software.

SETPOINT CARDS (PAXCDS)

The PAX and MPAX series has 4 available setpoint alarm output plug-in

cards. Only one of these cards can be installed at a time. (Logic state of the
outputs can be reversed in the programming.) These plug-in cards include:

PAXCDS10 - Dual Relay, FORM-C, Normally open & closed
PAXCDS20 - Quad Relay, FORM-A, Normally open only
PAXCDS30 - Isolated quad sinking NPN open collector
PAXCDS40 - Isolated quad sourcing PNP open collector

DUAL RELAY CARD

Type

: Two FORM-C relays

Isolation To Sensor & User Input Commons

: 2000 Vrms for 1 min.

Working Voltage: 240 Vrms

Contact Rating

One Relay Energized: 5 amps @ 120/240 VAC or 28 VDC (resistive load),

1/8 HP @120 VAC, inductive load

Total current with both relays energized not to exceed 5 amps

Life Expectancy

: 100 K cycles min. at full load rating. External RC snubber

extends relay life for operation with inductive loads

QUAD RELAY CARD

Type

: Four FORM-A relays

Isolation To Sensor & User Input Commons

: 2300 Vrms for 1 min.

Working Voltage: 250 Vrms

Contact Rating

One Relay Energized: 3 amps @ 240 VAC or 30 VDC (resistive load), 1/10

HP @120 VAC, inductive load

Total current with all four relays energized not to exceed 4 amps

Life Expectancy

: 100K cycles min. at full load rating. External RC snubber

extends relay life for operation with inductive loads

QUAD SINKING OPEN COLLECTOR CARD

Type

: Four isolated sinking NPN transistors.

Isolation To Sensor & User Input Commons

: 500 Vrms for 1 min.

Working Voltage: 50 V. Not Isolated from all other commons.

Rating

: 100 mA max @ V

SAT

= 0.7 V max. V

MAX

= 30 V

QUAD SOURCING OPEN COLLECTOR CARD

Type

: Four isolated sourcing PNP transistors.

Isolation To Sensor & User Input Commons

: 500 Vrms for 1 min.

Working Voltage: 50 V. Not Isolated from all other commons.

Rating

: Internal supply: 24 VDC ± 10% , 30 mA max. total

External supply: 30 VDC max., 100 mA max. each output

ALL FOUR SETPOINT CARDS

Response Time

: 200 msec. max. to within 99% of final readout value (digital

filter and internal zero correction disabled)

700 msec. max. (digital filter disabled, internal zero correction enabled)

LINEAR DC OUTPUT (PAXCDL)

Either a 0(4)-20 mA or 0-10 V retransmitted linear DC output is available

from the analog output plug-in card. The programmable output low and high
scaling can be based on various display values. Reverse slope output is possible
by reversing the scaling point positions.

PAXCDL10 - Retransmitted Analog Output Card

ANALOG OUTPUT CARD

Types

: 0 to 20 mA, 4 to 20 mA or 0 to 10 VDC

Isolation To Sensor & User Input Commons

: 500 Vrms for 1 min.

Working Voltage: 50 V. Not Isolated from all other commons.

Accuracy

: 0.17% of FS (18 to 28°C); 0.4% of FS (0 to 50°C)

Resolution

: 1/3500

Compliance