Red Lion PAXCDC3 User Manual

Finger
Hold

Finger

Hold

Serial

Communications

Card

Setpoint
Output
Card

Alignment

Slots

Connectors

Main
Circuit
Board

Analog Output

or

Real-Time

Clock Card

ANALOG
OUTPUT OR
REAL-TIME
CLOCK CARD

SETPOINT
OUTPUT
CARD
LABEL

SERIAL
OUTPUT
CARD
LABEL

MAIN

LABEL

LABEL

MAC

IDRATE

BAUD NETWORK

STATUS

LEDS

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MODEL PAXCDC -DEVICENET™ OUTPUT OPTION CARD

DESCRIPTION

The DeviceNet Option Card (PAXCDC30) is designed for the PAX series of
meters. It fits into the Comms slot of any PAX meter and allows the meter to
communicate with a DeviceNet bus. The card supports Polling, Bit Strobe, and

Explicit Message Commands. The MAC ID and the Baud Rate are switch
adjustable via a DIP switch. A bicolor LED is used to indicate the meter’s status
in relationship to the bus.

Bulletin No. PAXCDC3-E
Drawing No. LP0424
Released 01/11

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 screwdriver 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.

TOP VIEW

ORDERING INFORMATION

MODEL NO. DESCRIPTION PART NUMBER

PAX DeviceNet™ Output Card PAXCDC30PAXCDC

DIP SWITCHES

Both MAC ID and baud rate are set via DIP switches on the DeviceNet
option card. See the DIP switch setting table for more details on these DIP
switches. Configuration of MAC ID and baud rate is not supported over
DeviceNet.

NETWORK STATUS LEDs

The network status LEDs provide visual indication to the operator of the
DeviceNet card’s current status.

1

DeviceNet™ SPECIFICATIONS

POWER SUPPLY

Source: Supplied by DeviceNet bus.

The bus does not power the host.

Voltage: 11 to 25 VDC.
Current:

Nominal: 40 mA at 25 VDC.
Inrush: 550 mA for 5 msec at 25 VDC.

*Power must be applied to the PAX meter before bus power is applied to

the card.

NETWORK SPECIFICS

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 1 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.

Bus Connection:

12 V+
13 CAN_H
14 CAN_L
15 V­Shield: No Connection

INSTALLATION INFORMATION

Factory Settings:

Baud rate: 125 KBs.
MAC ID: 63
Strobe Register: 07h
Polling flags: All on.
Swap data flag: Off.
Store Flags: All on.

DIP SWITCH SETTING TABLE

SWITCH # SETTING

1 - 6
7 off, 8 off 125 K baud

7 on, 8 off 250 K baud
7 off, 8 on 500 K baud
7 on, 8 on N/A

CONNECTION SIZES

Device Profile: This product conforms to the DeviceNet specification

Volumes I and II of version 2.0.

Device Configuration: No DeviceNet configuration is supported.

MESSAGE PRODUCED CONSUMED

Explicit 4 Bytes 4 Bytes
Polled 4 Bytes 6 Bytes
Bit Strobe 4 Bytes 8 Bytes

MAC ID (all off = 0, all on = 63) Switch 1
is LSB (1), switch 6 is MSB (32).

NETWORK STATUS LEDs

Flashing Red LED:

This device is the only device on the network (waiting for an
acknowledgment to its duplicate MAC ID check), or an I/O connection
has timed out, or a recoverable error has occurred.

Flashing Green LED:

The device is functioning correctly and is waiting to be commissioned
by a bus master.

Solid Red LED:

The device has encountered a non-recoverable fault, such as a duplicate
MAC ID response, and has removed itself from the bus, or the device
is in a power up reset state and is attempting to come on line.

Solid Green LED:

The device is on line, functioning correctly and has been commissioned
by a bus master.

SUPPORTED CONNECTIONS

Polled Command: The Polled Command consumes 6 bytes of data, and is used

to get, set, or reset attributes. The meter attribute is determined by the value
in byte 0 of the data field. Refer to the Attribute Identification Chart for the
appropriate value. Byte 1 determines the action: 0 = get, 1 = set, 2 = reset.
The next 4 bytes are the new attribute value for the set command. For get or
reset commands, enter 4 zeros. The data response from the Polled Command
is in the format of a 4 byte hexadecimal number. For the get command (0),
the response is the attribute value. For the set command (1), the response is
an echo of the data input. For the reset command (2), all 0s are returned.

Bit Strobe Command: The Bit Strobe Command consumes eight bytes of data,

or less. This is a read only predetermined meter attribute. The data response
from the Bit Strobe Command is in the format of a 4 byte hexadecimal
number. The register that will be read using the Bit Strobe command is
determined by setting Attribute 2, Instance 1, Class 100* (decimal) with a
value that represents the desired attribute. Refer to the Attribute Identification
Chart for the appropriate value.

*Class 100 (decimal) is a vendor specific class.

EXPLICIT MESSAGE COMMAND

Get Attribute: The attribute that will be read using the Get Attribute command

is determined by setting Service Code 14, Instance 1, Class 100* (decimal),
and the attribute with a value that represents the desired meter attribute. Refer
to the Attribute Identification Chart for the appropriate value. The data
response from the Get Attribute Command is in the format of a 4 byte
hexadecimal number.

Set Attribute: The attribute that will be set using the Set Attribute command is

determined by setting Service Code 16, Instance 1, Class 100* (decimal), and
the attribute with a value that represents the desired meter attribute. Refer to the
Attribute Identification Chart for the appropriate value. The data field for the
Set Attribute Command is entered as a 4 byte hexadecimal number.

Reset Attribute: The attribute that will be reset using the Reset Attribute

command is determined by setting Service Code 5, Instance 1, Class 100*
(decimal), and the attribute with a value that represents the desired meter
attribute. Refer to the Attribute Identification Chart for the appropriate value.

*Class 100 (decimal) is a vendor specific class.
Note: Not all meter attributes respond to a Set or Reset Attribute command.

Refer to the Attribute Identification Chart for details.

However, some meter configuration is supported.

Vendor Specific Error Responses

CODE ERROR # ERROR CODE MEANING

1F (General Code) Vendor Specific Error
1 (Additional Code) Meter Response Time-out
2 (Additional Code) Vendor Service Not Supported
3 (Additional Code) Command String Syntax Error

2

Attribute Identification Chart

VALUE DESCRIPTION SERVICE CODES SUPPORTED POLLING STORE

PAX PAXI PAXCK PAXDP PAX2A PAXDR PAX PAXI PAXCK PAXDP PAX2A PAXDR

1
2 Bit Strobe Attribute G, S G, S G, S G, S G, S G, S N/A N/A
3
4
5
6
7 Input Count A Timer Input A (rel) Input (rel) Rate A G G, S, R G, S, R G, R G, R G Attr 3, bit 0 Attr 26, bit 0
8 Total Count B Count Input B (rel) Total Rate B G, R G, S, R G, S, R G, R G, R G Attr 3, bit 1 Attr 26, bit 1

9 Max Count C RTC Time Calc Max. Input Rate C G, R G, S, R G, S G G, R G Attr 3, bit 2 Attr 26, bit 2
10 Min Rate RTC Date Total Min. Input Total A G, R G, S G, S G, R G, R G, S, R Attr 3, bit 3 Attr 26, bit 3
11 SP 1 Min SP 1 Min Input Setpoint 1 Total B G, S, R G, S, R G, S, R G, R G, S, R G, S, R Attr 3, bit 4 Attr 26, bit 4
12 SP 2 Max SP 2 Max Input Setpoint 2 Total C G, S, R G, S, R G, S, R G, R G, S, R G, R Attr 3, bit 5 Attr 26, bit 5
13 SP 3 Scale A SP 3 Input A (abs) Setpoint 3 Scale A G, S, R G, S G, S, R G G, S, R G, S Attr 3, bit 6 Attr 26, bit 6
14 SP 4 Scale B SP 4 Input B (abs) Setpoint 4 Scale B G, S, R G, S G, S, R G G, S, R G, S Attr 3, bit 7 Attr 26, bit 7
15

AOR

16

CSR
17 ----- Load B SP 3 Off ----- Band/Dev 3 Load B ----- G, S G, S ----- G, S G, S Attr 4, bit 2 Attr 27, bit 2
18 ----- Load C SP 4 Off ----- Band/Dev 4 ----- ----- G, S G, S ----- G, S ---- Attr 4, bit 3 Attr 27, bit 3
19 ----- SP 1 Timer Start SP 1 Input (abs) Setpoint 1 ----- G, S, R G, S G, S, R G G, S, R Attr 4, bit 4 Attr 27, bit 4
20 ----- SP 2 Count Start SP 2 Input Offset Setpoint 2 ----- G, S, R G, S G, S, R G, S G, S, R Attr 4, bit 5 Attr 27, bit 5
21 ----- SP 3 Timer Stop SP 3 ----- Setpoint 3 ----- G, S, R G, S G, S, R ---- G, S, R Attr 4, bit 6 Attr 27, bit 6
22 ----- SP 4 Count Stop SP 4 ----- Setpoint 4 ----- G, S, R G, S G, S, R ---- G, S, R Attr 4, bit 7 Attr 27, bit 7
23 ----­24 ----­25 ----­26

27
28

Scale C SP 1 Off Input A (offset) Band/Dev 1 Scale C G, S G, S G, S G, S G, S G, S Attr 4, bit 0 Attr 27, bit 0



Load A SP 2 Off Input B (offset) Band/Dev 2 Load A G, S G, S G, S G, S G, S G, S Attr 4, bit 1 Attr 27, bit 1



MMR
AOR
SOR

Data Swapping Flag

Polling Flags 1
Polling Flags 2
Polling Flags 3

DIP Switch











 MMR  MMR  MMR  MMR 

RTC Day



AOR  AOR  AOR 

 SOR  SOR  SOR  SOR 

Store Flags 1
Store Flags 2
Store Flags 3







G, S G, S G, S G, S G, S G, S N/A N/A

G, S G, S G, S G, S G, S G, S N/A N/A
G, S G, S G, S G, S G, S G, S N/A N/A

N/A G, S G, S G, S G, S G, S N/A N/A

G G G G G, S G, S N/A N/A

----- G, S G, S G, S G, S G, S Attr 5, bit 0 Attr 28, bit 0

----- G, S G, S G, S G, S G, S Attr 5, bit 1 Attr 28, bit 1

----- G, S G, S G, S G, S G, S Attr 5, bit 2 Attr 28, bit 2
G, S G, S G, S G, S G, S G, S N/A N/A
G, S G, S G, S G, S G, S G, S N/A N/A

N/A G, S G, S G, S G, S G, S N/A N/A

 Data Swap: (1 byte), Attribute 1, Instance 1, Class 100 (decimal). Data is

normally sent and entered as follows: Pax display value = 500000 (7A120h).
4 byte value sent would be 20 A1 07 00. Setting the data swap value to 1
would result in the data being sent as 00 07 A1 20. This attribute can only be
set to 0 or 1, all other values are ignored. The factory setting value is 0. Data
Byte is saved in EEPROM memory.

 Polling Flags: (3 bytes) Attribute 3 - 5, Instance 1, Class 100 (decimal). The

DeviceNet card is continually requesting values from the PAX unit. The
polling flags determine what values are requested during each loop. Setting
the flags to “1” enables the card to poll that particular value. A “0” value
disables it. Turning polling flags off allows the card to request fewer values
and therefore decreases the internal loop time, which allows the values that
are polled to be updated more often.

TYPICAL UPDATE TIMES

PAXI/PAXCK/PAXDPPAX

All values (19) – 750 msecAll values (10) – 1.00 sec

10 values – 430 msec5 values – 500 msec

5 values – 230 msec1 value – 100 msec

1 value – 52 msec

If a Set Attribute is executed for any value, that value is automatically
updated to the latest value, regardless of whether the polling flag is on or off.
On power up, all values are updated regardless of Polling flag settings.
Polling flag values are saved in EEPROM memory. Factory settings is “on”
for all Polling flags.

See Meter Attribute Identification Chart for polling flags.

 DIP Switch Values: (1 byte), Attribute 6, Instance 1, Class 100 (decimal).

Returns the dip switch setting. Switch 1 = LSB, 1 = on.

 Indicates PAX Manual Mode Registers. See next section for descriptions of

these registers.

 Store Flags: (3 bytes) Attribute 26 - 28, Instance 1, Class 100 (decimal). This

set of flags determines whether the attribute is stored to EEPROM when a Set
or Reset service code is executed. If the flag is 0, the value is not saved to
EEPROM memory in the P AX. If the flag is 1, the value is saved immediately
to EEPROM memory in the PAX. Factory setting is “on” for all Store Flags.
The attributes are grouped in blocks. Storing one attribute may cause others
to be stored. If an attribute is SET frequently, its store flag should be set to 0
to increase EEPROM life.

MANUAL MODE DESCRIPTION

(CSR) Control Status Register [16] (PAX)

The Control Status Register is used to directly control the meter’s outputs
(setpoints and analog output), or view the state of the setpoint outputs and the
status of the temperature sensor (PAXT only). The attribute is bit mapped with
each bit position within the attribute assigned to a particular control function.
The control functions are invoked by writing to each bit position. The bit
position definitions are:



bit 1: SP2 Output
bit 2: SP3 Output
bit 3: SP4 Output

0 = output off



1 = output on



bit 4: Manual Mode

0 = automatic mode
1 = manual mode

In Manual Mode, the setpoint outputs are defined by the values written to bits
b0, b1, b2, b3; and the analog output is defined by the value written to the AOR.
Internal control of these outputs is then overridden. In automatic mode, the
setpoint outputs can only be reset off.

Example:

1. Select manual mode for all outputs:

Value to write to attribute 16: 0010h

bit 5: Always stays 0, even if 1 is sent.bit 0: SP1 Output
bit 6: Sensor Status (PAXT only)

0 = sensor normal
1 = sensor fail

bit 7: Always stays 0, even if 1 is sent.

3

MANUAL MODE DESCRIPTION (CONTINUED)

(MMR) Auto/Manual Mode Register [23]
(P AXI/PAXCK/PAXDP/PAX2A/PAXDR)

This attribute sets the controlling mode for the outputs. In Auto Mode (0) the
meter controls the setpoint output. In Manual Mode (1) the outputs are defined
by the attribute SOR. When transferring from auto mode to manual mode, the
meter holds the last output value (until the attribute is changed by a write). Each
output may be independently changed to auto or manual. Select values to place
in manual mode by writing appropriate value to attribute 23. The bit position
definitions are:

PAXI/PAXDP/PAX2A/PAXDR

bit 0: Analog Output
bit 1: SP4
bit 2: SP3
bit 3: SP2
bit 4: SP1

Example:

1. Select manual mode for all outputs and AOR (PAXI/PAXDP/PAX2A/

PAXDR):

Value to write to attribute 23: 001Fh



0 = Auto Mode



1 = Manual Mode



bit 0: SP4
bit 1: SP3
bit 2: SP2
bit 3: SP1

(SOR) Setpoint Output Register [25]
(PAXI/PAXCK/PAXDP/PAX2A/PAXDR)

This attribute is used to view or change the states of the setpoint outputs.
Reading from this attribute will show the present state of all the setpoint outputs.
A “0” in the setpoint location means the output is inactive and a “1” means the
output is active.

In Automatic Mode (See MMR Description), the meter controls the setpoint
output state. In Manual Mode, writing to this attribute will change the output
state. The bit position definitions are:

bit 0: SP1
bit 1: SP2
bit 2: SP3
bit 3: SP4

Examples:

1. Turn all outputs on:

Value to write to attribute 25 - 000Fh.

2. Turn outputs 1, 3 on:

Value to write to attribute 25 - 0005h.

3. Turn all outputs off:

Value to write to attribute 25 - 0000h.



0 = Output off



1 = Output on



PAXCK



0 = Auto Mode



1 = Manual Mode



(AOR) Analog Output Register (Not PAXCK)

The Analog Output Register controls the analog output of the meter. The
manual mode must first be engaged by setting bit 4 of the CSR (PAX) or bit 0
of the MMR (PAXI). The range of values of this attribute is 0 to 4095, which
corresponds to 0 mA, 0 V and 20 mA, 10 V; respectively. If a value larger than
4095 is written to the AOR Attribute, 4095 will be loaded. The table lists
correspondence of the output signal with the attribute value.

*Due to the absolute accuracy rating
and resolution of the output card, the
actual output signal may differ 0.15% FS
from the table values. The output signal
corresponds to the range selected (20 mA
or 10 V).

Writing to this attribute while the meter is in the manual mode causes the output
signal to update immediately. While in the automatic mode, this attribute may be
written to, but the output will not update until the meter is placed in manual mode.

Examples:

1. Set output to full scale:

Value to write to attribute 15 (PAX) or attribute 24 (PAXI) - 0FFFh (4095).

2. Set output to zero scale:

Value to write to attribute 15 (PAX) or attribute 24 (PAXI) - 0000h (0).

Attribute Value

0

1
2047
4094
4095

Output Signal*

I (mA)

0.000 0.000

10.000 5.000

19.995 9.9975

V (V)

0.00250.005

10.00020.000

Red Lion Controls
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York PA 17406
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The Company warrants the products it manufactures against defects in materials and workmanship

LIMITED WARRANTY

for a period limited to two years from the date of shipment, provided the products have been stored,
handled, installed, and used under proper conditions. The Company’s liability under this limited
warranty shall extend only to the repair or replacement of a defective product, at The Company’s
option. The Company disclaims all liability for any affirmation, promise or representation with
respect to the products.

The customer agrees to hold Red Lion Controls harmless from, defend, and indemnify RLC against
damages, claims, and expenses arising out of subsequent sales of RLC products or products
containing components manufactured by RLC and based upon personal injuries, deaths, property
damage, lost profits, and other matters which Buyer, its employees, or sub-contractors are or may be
to any extent liable, including without limitation penalties imposed by the Consumer Product Safety
Act (P.L. 92-573) and liability imposed upon any person pursuant to the Magnuson-Moss Warranty
Act (P.L. 93-637), as now in effect or as amended hereafter.

No warranties expressed or implied are created with respect to The Company’s products except
those expressly contained herein. The Customer acknowledges the disclaimers and limitations
contained herein and relies on no other warranties or affirmations.

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