Red-lion PAXCDC4 (MODBUS) Manual de usuario descargar pdf

INSTALLING AN OPTION CARD

Caution: The option and main circuit cards contain static

sensitive components. Before handling the cards, discharge static

charges from your body by touching a grounded bare metal

object. Ideally, handle the cards at a static controlled clean

workstation. Also, only handle the cards by the edges. Dirt, oil or

other contaminants that may contact the cards can adversely

affect circuit operation.

Warning: Exposed line voltage exists on the circuit boards.

Remove all power to the meter AND load circuits before

accessing the unit.

1. Remove the main assembly from the rear of the case. Squeeze the finger

holds on the rear cover, or use a small scewdriver to depress the side

latches to release it from the case. It is not necessary to separate the rear

cover from the main circuit card.

2. Locate the option card connector for the type of option card to be

installed. Hold the unit by the rear connector, not the display board, when

installing an option card.

3. Install the option card by aligning the option card connector with the slot

in the rear cover. The cards are keyed by position with different main

board connector locations. Be sure the connector is fully engaged and the

tab on the option card rests in the alignment slot on the display board.

4. Slide the assembly back into the case. Be sure the rear cover latches fully

into the case.

5. Apply the option card label to the bottom side of the meter. Do not cover

the vents on the top surface of the meter. The surface of the case must be

clean for the label to adhere properly. Apply the label to the area

designated by the large case label.

6. See manual for wiring connections and programming procedures.

DESCRIPTION

This product bulletin covers the MODBUS Communication Card for the PAX

Meters. The card will allow the PAX Meter to transmit Display Values,

Setpoints and Reset Values via

MODBUS RS485 communication, in the RTU

and ASCII modes.

MODEL PAXCDC -MODBUS OUTPUT OPTION CARD

Finger

Hold

Finger

Hold

Serial

Communications

Card

Setpoint

Output

Card

Alignment

Slots

Connectors

Main

Circuit

Board

Analog Output

Real-Time

Clock Card

TOP VIEW

ANALOG

OUTPUT OR

REAL-TIME

CLOCK CARD

SETPOINT

OUTPUT

CARD

LABEL

SERIAL

OUTPUT

CARD

LABEL

MAIN

LABEL

ORDERING INFORMATION

MODEL DESCRIPTION PART NUMBER

PAX MODBUS Output Card

PAXCDC4C

PAXCDC40

PAXCDC

Bulletin No. PAXCDC4-F

Drawing No. LP0502

Released 09/09

Tel +1 (717) 767-6511

Fax +1 (717) 764-0839

www.redlion.net

PAX MODBUS Output Card with RJ11 Connector

MODBUS SPECIFICATIONS

1. Type: RS485; RTU and ASCII MODBUS modes

2. Isolation To Sensor & User Input Commons: 500 Vrms for 1 minute.

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

3. Baud Rates: 300 to 38400.

4. Data: 7/8 bits

5. Parity: No, Odd, or Even

6. Addresses: 1 to 247.

7. Transmit Delay: Programmable; See Transmit Delay explanation.

1 2 3 4 5 6 7 8

Indice de contenidos

Pagina 1 - MODBUS SPECIFICATIONS

1INSTALLING AN OPTION CARDCaution: The option and main circuit cards contain static sensitive components. Before handling the cards, discharge static

Pagina 2 - BAUD RATE SWITCH SELECTIONS

2SERIAL SET-UP DIP SWITCH OPERATION Serial port configuration is accomplished through two banks of DIP switches on the MODBUS card. The bank of 8 swit

Pagina 3 - Output Signal*

(CSR) Control Status Register [40021]The Control Status Register is used to directly control the meter’s outputs (setpoints and analog output), or vie

Pagina 4

HOLDING REGISTERS* See Coil Table for register mapping and Coil Descriptions for functionality.Notes: 1. Any registers marked with “——” are unused and

Pagina 5 - COIL TABLE

5COIL TABLECOIL ADDRESSCOIL NUMBERPAX PAXI PAXCK PAXDRCOIL NAMEMIRROR REGISTERCOIL NAMEMIRROR REGISTERCOIL NAMEMIRROR REGISTERCOIL NAMEMIRROR REGISTER

Pagina 6 - COIL DESCRIPTIONS

6Coils 1-4: Output CoilsThese coils are used to read or change the states of the Setpoint Outputs. To change the state of the output(s), the output(s)

Pagina 7

7This page intentionally left blank

Pagina 8 - LIMITED WARRANTY

LIMITED WARRANTYThe Company warrants the products it manufactures against defects in materials and workmanship for a period limited to two years from