PCE Instruments PCE-IR 56 Operator's Manual

PCE Americas Inc.
711 Commerce Way
Suite 8
Jupiter
FL-33458
USA
From outside US: +1
Tel: [phone]
Fax: [phone]
[e-mail]

www.pce-instruments.com/english

Operator’s Guide

6-Channel Modbus
Infrared Thermometer PCE-IR 56

PCE Instruments UK Ltd.

Southpoint Business Park

Hampshire / Southampton

United Kingdom, SO31 4RF

[e-mail]

www.pce-instruments.com

Units 12/13

Ensign way

From outside UK: +44

Tel: [phone]

Fax: [phone]

The PCE-IR 56
PCE Instruments infrared temperature sensors.

The P CE-IR 5 6 functions as the Modbus Master on an RS485 network of up to 6 temperature sensors,
and can itself be connected as a slave device to another RS485 network via a second, isolated
Modbus interface. This allows multiple P CE-IR 56 units to be multi-dropped to create a large network
of sensors and displays.

Optional alarm relay modules allow the PCE-IR 5 6 to be connected to alarm equipment such as
sounders and beacons, and optional analogue output modules allow it to be connected to non­Modbus instrumentation.

modules are adjustable via the PCE-IR 5 6 built-in resistive touch screen interface, which can be
operated even with gloves on.

With an optional MicroSD Card inserted, the P CE-IR 5 6

SPECIFICATIONS

Display

320 x 240 pixels, backlit

Supply Voltage 10 to 30 V DC
Maximum Current Draw 100 mA
Ambient Temperature Range 0°C to 60°C
Relative Humidity Maximum 95%, non-condensing

Congurable Parameters (global) Temperature units, date and time, data logging,
graph channels, alarm logging

Congurable Parameters (per channel) Signal processing, emissivity setting, reected energy

compensation, alarms, Modbus address
Alarm Conguration 12 alarms (2 per sensor) with adjustable level,

individually congurable as HI or LO.

Temperature Units °C or °F selectable
Temperature Resolution 0.1° below 1000°; 1° above 1000°

Signal Processing Average, peak hold, valley hold, minimum, maximum

Display Sample Period

2.83” (72 mm) resistive touch TFT,

120 ms per device (720 ms in total for 6 devices)

MECHANICAL

Dimensions

Weight 280 g

2

98(w) x 64(h) x 36(d) mm excluding cable glands

DATA LOGGING

Touch screen

72 mm (2.83")

48

18

Cable glands:

17 mm AF

64

36

20

36

Mounting
holes: use
M4 CSK
screws

98
86

manually started and stopped via a button on the temperature display screen, or scheduled to
begin at a pre-determined time via the Settings menu.

If the PCE-IR 56 is connected via the slave interface to another Modbus network, logging may also be
started remotely by the Modbus Master on that network.

DATA LOGGING SPECIFICATIONS

Logging Interval

1 to 86,400 seconds (1 day)

MicroSD Card Max. capacity: 32 GB (not included)
Internal Clock Battery 1 x BR 1225 3V (not included)

Variables Logged Target temperature, sensing head temperature, alarm events
File Format .csv (can be imported to Excel)
Configurable Parameters Sample period, number of samples, scheduled start date

and time

DIMENSIONS (MM)

eb yam gniggol atad 6, PCE-IR 5eht edisni tols eht ni dellatsni draC DSorciM lanoitpo na htiW

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Modbus

Slave

Modbus

Master

0V* RS+ RS-

RS+ RS-PWR+ PWR-

Removable

screw

terminals

0 V

+10 to 28 V DC

RS485 +

RS485 -

Signal Ground*

RS485 +

RS485 -

* If using the Modbus
Slave interface, the 0V
terminal should be
connected to the signal
ground of this network's
Modbus Master (e.g. a
PLC or SCADA system)

Ensure PWR- of all sensors and GND of all output
modules on this network is connected to PWR- of
the PCE-IR 56 Modbus Master interface

PCE-IR 56

The PCE-IR 56 has removable screw terminal blocks for the Modbus Slave and Modbus Master
interfaces.

Connect the Master interface to the sensors and output modules. Be sure to check the power

−

supply requirements of each device before applying power.

Optionally, connect the Slave interface to another Modbus network with its own Modbus

−

Isolation is provided between the Slave and Master interfaces.

MICROSD CARD AND BATTERY

The MicroSD Card and battery slots are located on the touch screen circuit board. Unscrew the lid
of the PCE-IR 56 to access them.

The battery is optional. With a battery tted, the internal clock will continue to run when the power
is o. Without a battery, the unit will request the date and time each time the power is cycled.

All other settings are stored in the unit’s permanent memory and will be preserved when it is
switched o, regardless of whether a battery is tted.

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such as a PLC or SCADA system.

Master

+12 V DC+24 V DC

PyroBus

sensor

PyroMini or FibreMini

sensor

PyroMiniBus

sensor

PASSWORD

The default password is 1234. The password may be changed via the touch screen interface.

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MODBUS OVER SERIAL LINE (RS485)

INTERFACE
Baud rate 9600

Format 8 data, No parity, 1 stop bit

Reply delay (ms) 20

SUPPORTED FUNCTIONS
Read register 0x03, 0x04
Write single register 0x06
Write multiple register 0x10

The list below includes all available addresses:
R = Read, W = Write

Address Leng t h

(words)

0x0000 1 MODBUS slave address R/W

0x0001 7 Sensor identication string in ASCII R

0x0008 2 Serial number R

0x000A 2 Sample Period (1 to 86400) R/W

0x000C 2 Number of Samples (0 to 86400) R/W

0x000E 1 Data acquisition enabled (0 for disabled, 1 for enabled) R/W

0x000F 1 Data acquisition start time: Hours (0 to 23) R/W

0x0010 1 Data acquisition start time: Minutes (0 to 59) R/W

0x0011 1 Data acquisition start time: Seconds (0 to 59) R/W

0x0012 1 Data acquisition start time: Day (1 to 31) R/W

0x0013 1 Data acquisition start time: Month (1 to 12) R/W

0x0014 1 Data acquisition start time: Year (2012 to 2105) R/W

0x0015 1 Alarm log settings R/W

0x0020 1 Remote request - Start logging R/W

0x0021 1 Remote request - Stop logging R/W

0x0022 1 Remote request - Acknowledge alarms R/W

0x0023 1 Remote request - Reset alarms R/W

Description R/W

"PCE-IR 56 vx.xx" where x.xx is the rmware version

Bit 0 - Log trigger time

Bit 1 - Log while triggered

Bit 2 - Log acknowledge time

Bit 3 - Log reset time

Write 1 - request start of data logging

Read 1 - request pending, Read 0 - no request pending

Write 1 - request termination of data logging

Read 1 - request pending, Read 0 - no request pending

Write

1 - request acknowledgement of alarms

Read 1 - request pending, Read 0 - no request pending

Write 1 - request reset of alarms

Read 1 - request pending, Read 0 - no request pending

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SENSOR SETTINGS ADDRESS SPACE

The settings of attached sensors can be read by adding the following offsets to the addresses speci­fied by the sensor manufacturer:

Sensor index Address offset

0 0x1000

1 0x1100

2 0x1200

3 0x1300

4 0x1400

5 0x1500

6 0x1600

See sensor manual for further details.

Notes:

1. For further information please refer to http://www .modbus.org/specs.php

2. Use address 255 to communicate with any connected unit (only one sensor connected)

3. Use address 0 to broadcast to all connected units (no response expected)

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