EVCO c-pro mega User Manual

C-PRO MEGA

PROGRAMMABLE CONTROLLERS

HARDWARE MANUAL

CODE 114CPRMHWE01

C-PRO MEGA HARDWARE MANUAL

Important

Please read these instructions carefully prior to installation and use, and follow all the precautions for installation and electrical
connections; keep these instructions with the device for future consultation.

The device must be disposed of in accordance with local regulations pertaining to the collection of electrical and electronic
appliances.

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C-PRO MEGA HARDWARE MANUAL

Sommario

Introduction ........................................................................................................................................................................ 4

1 Components and Accessories network......................................................................................................................8

1.1 Built-in version example........................................................................................................................................................ 8

1.2 Sealed case version example.................................................................................................................................................. 9

2 Technical features ...................................................................................................................................................10

2.1 Connections ......................................................................................................................................................................... 10

2.2 C-PRO MEGA wiring layout............................................................................................................................................... 12

Jumpers and LEDs meanings ............................................................................................................................................................ 17

2.3 C-PRO MEGA Dimensions / Installations .......................................................................................................................... 20

3 C-PRO MEGA technical features........................................................................................................................... 23

3.1 General features ................................................................................................................................................................... 23

3.2Housing ........................................................................................................................................................................................ 23

3.2 General features ................................................................................................................................................................... 24

3.3 Electrical features ................................................................................................................................................................ 25

3.4 C-PRO MEGA built-in user interface.................................................................................................................................. 28

4 C-PRO EXP MEGA I/O expansion ........................................................................................................................ 30

4.1 C-PRO EXP MEGA wiring layout ...................................................................................................................................... 31

5. C-PRO EXP MEGA Dimensions / Installations....................................................................................................................... 34

6. Remote User interface.............................................................................................................................................35

6.1 V-VIEW............................................................................................................................................................................... 35

6.1.1.V-VIEW User Interface........................................................................................................................................................ 35

6.1.2 V-VIEW wiring layout......................................................................................................................................................... 37

6.1.3. V-VIEW specifications ....................................................................................................................................................... 37

7 Accessories ............................................................................................................................................................. 39

7.1 C-PRO AL switching feeder................................................................................................................................................ 39

7.1.1. C-PRO AL wiring layout ........................................................................................................................................... 40

8 Configuration of the supplied analogic outputs signal............................................................................................ 42

8.1.1 Parameters configuration relative to the analog output................................................................................................... 42

8.1.2 Closing the analogic output configuration procedure............................................................................................................. 43

9.1.1. Notes on the parameter of the controller relative to the CAN net configuration........................................................... 45

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C-PRO MEGA HARDWARE MANUAL

Introduction

The C-PRO MEGA f programmable controllers family is the right solution for refrigeration, ventilation and air
conditioning applications. Both in terms of controls, regulation and the user interface, the controller application
software is fully programmable, in a simple and intuitive way, thanks to the use of the UNI-PRO development
environment.

The C-PRO MEGA is available in a DIN rail version (see the pictueres below). It is available also in “open”
version only with plastic base for DIN rail mounting

By using the 8 relay outputs, it is possible to control various types of devices such as compressors, water
circulation pumps, defrosting elements, condensation or evaporation fans, cycle inversion valves, alarm
warning indicators etc.
The C-PRO MEGA is also equipped with 4 analog outputs 0,5-10 V, 0-20 mA or 4-20 mA.

The controller has 8 analog inputs :

- n° 2 for PTC probes / NTC probes / 0-5 V transducers / 0-10 V transducers / 0-20 mA transducers /

4-20 mA transducers

- n° 6 for NTC probes / 0-20 mA transducers / 40-20 mA transducers

C-PRO MEGA is also equipped with 10 low voltage digital input (12-24 Vac/dc) for normally open contact.

All the parameters may be set from the user interface.

The display is 4 x 20 font alphanumeric LCD; the keypad has 9 keys and 6 signal LED ; the sealed case and the
open versions have neither display nor keypad and must be used in conjunction with a remote terminal.

The controllers have the following serial communication ports:

• n° 1 optoinsulated RS-485 (always mounted on the controller) with EVCO or MODBUS
communication protocol

• n° 1 not optoinsulated LocalCAN (always mounted on the controller)

• n° 1 optoinsulated RS-485 or n° 1 RS-232 (on request, not available on built-in or open
versions)

• n°1 optoinsulated WideCAN (on request, available only on 128 KB memory version).

C-PRO MEGA has real time clock (always mounted on the controller).

With C-PRO EXP KILO, C-PRO EXP MEGA e C-PRO EXP GIGA, the I/O improvement is possible.

The following table shows the C-PRO MEGA main characteristics:

Dimensions Power supply

Analogic

Inputs

Digital

Inputs

Analogic

outputs

Digital

output

CAN
ports

UART

ports

C-PRO MEGA

14 DIN

modules

12 VDC

(main supply)

+

12 VDC

(secondary

supply)

or

24 VAC/DC

8 10 4 8

local
CAN

(standard)

+
wide
CAN

(optional)

RS-485

(standard)

+

RS-485

or

RS-232

(both

optional)

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C-PRO MEGA HARDWARE MANUAL

Attention :

With 12 Vdc + 12 Vdc power supply, the following ports and outputs are optoinsulated:

• the analogic output

• the RS-485 serial standard port

• the RS-485 serial (or RS-232) optional port

• the wide CAN port
In order to ensure the optoinsulation of these outputs, the controller must be supplied with two dc power
sources preferably insulated from each other (electrically insulated).

With 24 VAC/DC power supply , the following ports and outputs are not optoinsulated:

• the analogic outputs

• the RS-485 standard port

• the RS-485 (or RS-232) optional port

• the Wide-CAN port.

Optional RS-485 (or RS-232) port , is not available on the built-in and the open versions.
Optional wide CAN, is available only on 128 KB memory version.
Optional wide CAN, is not available in the open version controllers.

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C-PRO MEGA HARDWARE MANUAL

C-PRO MEGA

built-in version

C-PRO MEGA

Sealed Case Version

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C-PRO MEGA HARDWARE MANUAL

C-PRO MEGA

Open case version

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C-PRO MEGA HARDWARE MANUAL

1 Components and Accessories network

1.1 Built-in version example

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C-PRO MEGA HARDWARE MANUAL

1.2 Sealed case version example

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C-PRO MEGA HARDWARE MANUAL

2 Technical features

2.1 Connections

Power supply:

The C-pro MEGA family is available with two different version of power supply :

i. No optoinsulated internal switching 24Vac/dc version
ii. two separeted inputs 12 Vdc + 12 Vdc version. With this version the following ports and outputs are

optoinsulated:

• the analogic output

• the RS-485 serial standard port

• the RS-485 (or RS-232) optional serial port

• the Wide-CAN port
In order to ensure the optoinsulation of these outputs, the controller must be supplied with two dc power
sources preferably electrically insulated one from each other, for example by using an EVCO power supplier
“c-pro AL”. When the controller is powered with a 24 VAC/DC power supply, the over reported outputs and
ports are not opto-insulated. The connection cables length must be 1 m, maximum.

Analogic input connections:
The C-PRO MEGA has two analogic inputs (“universal” named) suitable for the NTC, PTC, Voltage (0-10V,
0-5V), Current (0-20mA, 4-20mA) sensors. The choice is automatically made by means the UNI-PRO
development system or parameters. A Jumper must be removed only for the 0-10V energized input (refer to the
physical layout section and jumpers).
The C-Pro MEGA has six analogic inputs (“configurable” named) suitable for the NTC and Current sensors (0­20mA, 4-20mA). The choice is automatically made by means the UNI-PRO development system or
parameters. Note that the six inputs are divided into three pairs; each pair must have the same input type.
The active probes may be fed using the VDC terminals (see physical layout) with a stabilized voltage of 12.5V
(total maximum current <=200mA). The length of the analogic input connections cables must be 3 m, at the
most.

Digital input connections :

The C-PRO MEGA has ten low-voltage optoinsulated digital inputs (12-24Vac/dc) . To benefit from the
optoinsulation features, it's recommended to separate the digital input feed from the main power supply of the
controller. If the C-PRO MEGA is fed using the C-PRO AL switching power supply, that can be used to feed
the controller and the digital inputs.
The length of the digital input connections cables must be 3 m, at the most.

Digital output connections :

C-PRO MEGA has 8 digital outputs. There are no groupings of terminals, therefore each individual contact can
be used for the declared specifications.
The length of the digital output connections cables must be 3 m, at the most.

Analogic output connections :

C-PRO MEGA has 4 optoinsulated analogic outputs (voltage or current). Both voltage and current selection
are achieved by using Jumpers (see section wiring layout) and parameters.
The length of the analogic output connections cables must be 3 m, at the most.

User interface connections:

The connection between C-PRO MEGA and the remote user interface has to be done with 4 wire cable (better
if it is two weaved couples).

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C-PRO MEGA HARDWARE MANUAL

The maximum length of the connection cables to the remote user interface depends of the CAN port baud rate .
Local CAN port:

- 10 m with 20.000 baud

- 5 m with 50.000 baud

- 2 m with 125.000 baud

- 1 m with 500.000 baud.

Wide CAN port:

- 1.000 m with 20.000 baud

- 500 m with 50.000 baud

- 250 m with 125.000 baud

- 50 m with 500.000 baud.

The LocalCAN port baud rate is settable by jumpers (see section wiring layout).
The WideCAN port baud rate is settable by parameter.

Connection with a remote expansion (or an other CAN controller) :

The connection between C-PRO MEGA and the remote expansion (or other CAN controller) has to be done
with 4 wire cable (better if it is two weaved couples).
The maximum length of the connection cables to the remote controllers or expansions depend on the CAN port
baud rate (see above section “User interface connections”)

C-PRO MEGA and the expansion ( or other CAN controller) power supplies has to be electrically
insulated one from the other.

Electrical wiring precautions

- do not work with electric or pneumatic screw-wrenches on the connectors of the controller

- if the device has been moved from a cold to a warm environment, humidity condensation may have
formed inside; please, wait approximately one hour before to switching it on .

- ensure that the voltage, frequency and operational power of the device are compatible with the local
power supply

- disconnect the power supply before proceeding with any kind of operation of maintenance

- do not use the device as a safety device

- for repairs and any information relating to the device, contact the Evco dealer network.

Cautions

Besides the maximum length of the connection cables, some other cautions have to be respected :
To avoid immunity problems, it is good practice to observe the following instructions:

- Avoid locations with antennas

- Do not wire probe inputs together with relay outputs; generally, avoid combining low and high voltage

- Avoid winding the wirings onto power components

To avoid safety problems, it is good practice to observe the following instructions:

- Avoid rooms with relative humidity >90%

- Avoid water

- Avoid corrosive environments

- Avoid explosive environments

Besides, ensure that the operating conditions correspond with the use limits indicated in the technical features.

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C-PRO MEGA HARDWARE MANUAL

2.2 C-PRO MEGA wiring layout

C-PRO MEGA is available in two different version : the first with 12 VDC + 12 VDC e the second with 24
VAC/DC power supply.
The C-PRO MEGA 12 VDC + 12 VDC wiring layout connection is reported here below.
C-PRO AL power supplier adoption is recommended .

Please, refer to the section “power supply” of capter 3 regarding the utilisation optoinsulation.

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C-PRO MEGA HARDWARE MANUAL

Following it is reported the C-PRO MEGA 24 VAC/DC version wiring layout connection; C-PRO AL power
supplier adoption is recommended

Please, refer to the section “power supply” of capter 3 regarding the utilisation optoinsulation.

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C-PRO MEGA HARDWARE MANUAL

The following table shows the available inputs and outputs on c-pro Mega :

Lower board 12 VDC + 12 VDC power supply version

Conn.

C1-1 VCC main card power supply (+13Vdc)
C1-2 GND Main power supply reference
JA-1 VDC power supply for active sensors (*1)
JA-2 AI 1 universal analogic input 1 (NTC, PTC, 0..5V, 0..10V, 0..20 mA, 4..20 mA)
JA-3 GND common terminal for analogic inputs

JB-1 VDC power supply for active sensors (*1)
JB-2 AI 2 universal analogic input 2 (NTC, PTC, 0..5V, 0..10V, 0..20 mA, 4..20 mA)
JB-3 GND common terminal for analogic inputs

JC-1 VDC power supply for active sensors (*1)
JC-2 AI 3 analogic input 3, configurable (NTC, 0..20 mA, 4..20 mA)
JC-3 AI 4 analogic input 4, configurable (NTC, 0..20 mA, 4..20 mA)
JC-4 GND common terminal for analogic inputs

JD-1 VDC power supply for active sensors (*1)
JD-2 AI 5 Analogic input 5, configurable (NTC, 0..20 mA, 4..20 mA)
JD-3 AI 6 Analogic input 6, configurable (NTC, 0..20 mA, 4..20 mA)
JD-4 AI 7 Analogic input 7, configurable (NTC, 0..20 mA, 4..20 mA)
JD-5 AI 8 Analogic input 8, configurable (NTC, 0..20 mA, 4..20 mA)
JD-6 GND common terminal for analogic inputs

JE-1 COM common terminal for digital inputs
JE-2 DI 1 digital input no. 1 Vac/Vdc
JE-3 DI 2 digital input no. 2 Vac/Vdc
JE-4 COM common terminal for digital inputs

JF-1 COM common terminal for digital inputs
JF-2 DI 3 digital input no. 3 Vac/Vdc
JF-3 DI 4 digital input no. 4 Vac/Vdc
JF-4 DI 5 digital input no. 5 Vac/Vdc
JF-5 DI 6 digital input no. 6 Vac/Vdc
JF-6 COM common terminal for digital inputs

JG-1 COM common terminal for digital inputs
JG-2 DI 7 digital input no. 7 Vac/Vdc
JG-3 DI 8 digital input no. 8 Vac/Vdc
JG-4 DI 9 digital input no. 9 Vac/Vdc
JG-5 DI 10 digital input no. 10 Vac/Vdc
JG-6 COM common terminal for digital inputs

YA-1 VDC 12 Vdc power supply output to a remote use interface
YA-2 CAN1+ CAN+ output to the Local-CAN
YA-3 CAN1- CAN- output to the Local-CAN
YA-4 GND GND power supply output to a remote use interface
JH-1 NC 1 normally closed contact relay no. 1
JH-2 COM 1 common relay no. 1
JH-3 NO 1 normally open contact relay no. 1

JI-1 NC 2 normally closed contact relay no. 2
JI-2 COM 2 common elay no. 2

JI-3 NO 2 normally open contact relay no. 2
JK-1 COM 3 common relay no. 3
JK-2 NO 3 normally open contact relay no. 3
JK-3 COM 4 common relay no. 4
JK-4 NO 4 normally open contact relay no. 4
JK-5 COM 5 common relay no. 5

Letter

code

Description

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C-PRO MEGA HARDWARE MANUAL

Conn.

JK-6 NO 5 normally open contact relay no. 5

JL-1 COM 6 common relay no. 6
JL-2 NO 6 normally open contact relay no. 6
JL-3 COM 7 common relay no. 7
JL-4 NO 7 normally open contact relay no. 7
JL-5 COM 8 common relay no. 8
JL-6 NO 8 normally open contact relay no. 8

YC-1 RS485+ RS 485 + serial port connector
YC-2 RS485- RS 485 - serial port connector
YC-3 GND* GND serial port connector

JM-1 AO 1 Analogic output no. 1 (0,5..10 V / 4..20mA)
JM-2 AO 2 Analogic output no. 2 (0,5..10 V / 4..20mA)
JM-3 AO 3 Analogic output no. 3 (0,5..10 V / 4..20mA)
JM-4 AO 4 Analogic output no. 4 (0,5..10 V / 4..20mA)
JM-5 GND* Common terminal for analogic outputs

C2-1 VCC* secondary power supply for optoinsulated serial ports and analog outputs (15Vdc)
C2-2 GND* Secondary power supply reference

Letter

code

YB PRG JST connector for programming purposes

Description

*1: VDC=12,5V Imax=200mA (total for all VDC terminal)

Lower board 24 VAC/DC power supply version with built-in switching feeder

Conn.

CA-1 VCC main card power supply (24Vac/dc)
CA-2 VCC main card power supply (24Vac/dc)

Letter

code

Description

Wide CAN Port (on request)

Conn.

YD-1 CAN0+ CAN + WideCAN port
YD-2 CAN0- CAN - WideCAN port
YD-3 GND* GND WideCAN port

Letter

code

Description

Second RS-485 port (on request)

Conn.

YE-1 RS485- RS 485 - serial port
YE-2 RS485+ RS 485 + serial port
YE-3 GND* GND serial port

Letter

code

Description

RS-232 Port (on request, alternative to second RS-485 port)

Conn.

YF-1 5Vdc RS 232 9-pin connector ­YF-2 Tx RS 232 9-pin connector – Transmitting data
YF-3 Rx RS 232 9-pin connector – Receiving data
YF-4 DTR/DSR RS 232 9-pin connector ­YF-5 GND RS 232 9-pin connector -

Letter

code

Description

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C-PRO MEGA HARDWARE MANUAL

Conn.

YF-6 DTR/DSR RS 232 9-pin connector ­YF-7 RTS RS 232 9-pin connector ­YF-8 CTS RS 232 9-pin connector -

Letter

code

Description

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C-PRO MEGA HARDWARE MANUAL

Jumpers and LEDs meanings

The controller also has some configuration jumpers:

JMP1 Selection of analogic AI1 input

Jumper not inserted 0-10V input
Jumper inserted 0-5V, 0-20mA, 4-20mA, NTC, PTC input

JMP2 Selection of analogic AI2 input

Jumper not inserted 0..10V input
Jumper inserted 0-5V, 0-20mA, 4-20mA, NTC, PTC input

JMP3 CAN termination

Jumper not inserted
Jumper inserted

(120Ω) termination not inserted
(120Ω) termination inserted

JMP4 Local CAN Baud Rate selection

A

Jumper A inserted
Jumper B inserted

Baud rate = 20K

B
A

Jumper A inserted
Jumper B not inserted Baud rate = 50K

B
A

Jumper A not inserted
Jumper B inserted

Baud rate = 125K

B
A

Jumper A not inserted
Jumper B not inserted Baud rate = 500K

B

JMP5 RS-485 termination

Jumper not inserted
Jumper inserted

(120Ω) termination not inserted
(120Ω) termination inserted

JMP6 Selection of Analogic Outputs

A
B
C

Jumper A inserted
Jumper B inserted
Jumper C inserted
Jumper D inserted

AO1 Output as current
AO2 Output as current
AO3 Output as current
AO4 Output as current

D
A
B
C

Jumper A not inserted
Jumper B not inserted
Jumper C not inserted
Jumper D not inserted

AO1 Output as voltage
AO2 Output as voltage
AO3 Output as voltage
AO4 Output as voltage

D

Besides the jumpers setting, for the analogic output signals supplied configuration, the settlement of the
controller parameters is also necessary ( see the chapter 8 : output signals supplied configuration)

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C-PRO MEGA HARDWARE MANUAL

There are also some LEDs with diagnostic meaning (note: the L5, L6 LEDs are located inside of the controller
case)

LED L1 Local CAN communication status

On blinking rapidly OK
On blinking slowly Warning
On continuously Bus Error
Off Bus OFF

Led L2 Local CAN communication status

On blinking rapidly OK
On blinking slowly Warning
On continuously Bus Error
Off Bus OFF

Led L3 Real Time Clock status

On blinking rapidly ­On blinking slowly Low_Voltage detected
On continuously Read_Error
Off OK

Led L4 EEPROM memory status

On blinking rapidly CRC_Error
On blinking slowly Write_Error
On continuously Read_Error
Off OK

LED L5 Interrupt

It indicates the interrupt operating status of the controller: when blinking at 1 Hz, that indicates
internal controller times are properly working

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C-PRO MEGA HARDWARE MANUAL

LED L6 Operating status of main

It indicates the operating status of the controller's main program (main): when blinking, it indicates
the controller program is properly working. The flashing period indicates the execution time of the
main cycle.

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C-PRO MEGA HARDWARE MANUAL

2.3 C-PRO MEGA Dimensions / Installations

C-PRO GIGA dimensions are reported here below; all dimensions are to be meant in millimeters (inc).

Built-in version

Sealed version

Open version

Cautions for the installation:

- ensure that the operating conditions (operating temperature, humidity, etc.) are within the limits

indicated in the technical data sheets

- do not install the device near to, any heat sources (heating elements, hot air conduits, etc.), equipment

containing powerful magnets (large diffusers, etc.), areas affected by direct sunlight, rain, humidity,
excessive dust, mechanical vibration or shock

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C-PRO MEGA HARDWARE MANUAL

- in compliance with safety regulations, the device must be correctly installed, and protected against any

contact with electrical parts; all safety devices must be safely fixed in order to be removed only by
means of proper tools.

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C-PRO MEGA HARDWARE MANUAL

To install the C-PRO MEGA, proceed as indicated in figures 1 and 2.

To remove the C-PRO MEGA, use a screw driver and proceed as indicated in figures 3 and 4.

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C-PRO MEGA HARDWARE MANUAL

3 C-PRO MEGA technical features

3.1 General features

Safety reference standards
Purpose of the device Programmable controller for refrigeration,

Electronic control device To be integrated in equipment
Connections Plug-in terminal block 5mm pitch

Storage temperature limits -20T70 °C (@RH<90% non-condensing)

Ambient temperature limits

Electrical shock protection classification

Type of disconnection Low interruption (relay contacts)
PTI of insulation materials used >250
Installation 35-mm DIN Guide conforming to EN 50022
Type of action 1C
Pollution conditions Normal
Software class A

EN 60730-1

ventilation and air conditioning applications

for conductors up to 2.5 mm
sealed case versions)
Fixed\screw terminals for conductors up to 2.5

2

mm

(open case versions only)

-10T60 °C
0T50 °C for version with integrated LCD
(@RH<90% non-condensing)
An integrated control device puts the
classification on according to the equipment it is
integrated with

2

(built-in and

3.2Housing

Installation 35-mm DIN Guide conforming to EN 50022
Housing Conforms to DIN 43880
Material PVC UL 94 V0 Grey color
Resistance to fire rating D
Number of DIN modules 14
Protection level (front only) IP 40 ; IP 00 open case version only

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C-PRO MEGA HARDWARE MANUAL

3.2 General features

CPU

WideCAN
communication bus
(optional)

RS485 serial
communication
(UART2)
(optional,

alternative to
RS232)

RS232 serial

Microprocessor 16 bit 16 bit 16 bit 16 bit
Oscillator frequency 16 MHz 16 MHz 16 MHz 16 MHz
Flash program
memory
RAM data storage
memory
A/D converter 8 channels

Number 0 1 0 0
type CAN V2.0B

Physical layer 2 wires +

Baud rate (max.
length = 1000 m)
Baud rate (max.
length = 400 m)
Baud rate (max.
length = 250 m)
Baud rate (max.
length = 50 m)
Connector Disconnectable

Note: baud rate can be selected by parameter
Note: The physical level of the CAN consists of a cable with twisted pair (both shielded and
not shielded). The terminator's impedance is 120Ω.

Number 0 1

type RS485,

Physical layer 2 wires +

Baud rate (max.
length 1000 m)
Connector Disconnectable

Note: baud rate can be selected by parameter
Note: The physical level of the CAN consists of a cable with twisted pair (both shielded and
not shielded). The terminator's impedance is 120Ω.

Number 0 1

type RS232

Physical layer Tx,Rx +

communication
(UART2)

(optional,alternative
to RS232)

Baud rate (max.
length 1000 m)
Connector Sub-D 9 pin

128 KB instead of 256 KB program memory built-in with WideCAN serial output version of the controller is
available on request.

C-PRO
MEGA

open

256K 128K 256K 256K

8K 6K 8K 8K

10bit

20K

50K

125K

500K

1200 - 19200 1200 - 19200

1200 - 19200 1200 - 19200

C-PRO

MEGA

sealed (1)

8 channels
10bit

Optoisolated

common wire
(ISO 11898)

screw
terminals

optoinsulated

common

screw
terminals

optoinsulated

2 signal for
modem control
+ common

male

C-PRO

MEGA

sealed (2)

8 channels

10bit

1 0

RS485,

optoinsulated

2 wires +

common

Disconnectable

screw
terminals

1 0

RS232

optoinsulated

Tx,Rx +

2 signal for
modem control
+ common

Sub-D 9 pin

male

C-PRO
MEGA
built-in

8 channels
10bit

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C-PRO MEGA HARDWARE MANUAL

3.3 Electrical features

Internal Switching
Power supply

External Power
supply

(double inputs)

EEPROM Parameter and event log memory 4 Kbyte

Analogic Inputs

NTC or Current
inputs are
configurable through
UNI -PRO

Analogic Inputs

NTC, PTC, Voltage
or Current inputs are
configurable through
UNI-PRO

Low voltage Digital
Inputs

Main Input
Note: in this case the I/O and the serial ports

24Vac +/- 15%,
20-60Vdc, max 1A

of the controller are not insulated
Main Input 13Vdc, 0.6A (both inputs)

+0.2A if a user interface has to be fed
+0.6A if an expansion board has to be
feed

Secondary input

15Vdc, 0.15A
Note: in this case the I/O and the serial port
of the controller are insulated

Number 6

NTC measurement range

-40°C - 100°C

(10K ohm ±1% @ 25°C)
NTC measurement accuracy:

NTC measurement resolution

±0.8°C

0.1°C

Current measurement range 0 - 20 mA
Current measurement accuracy ±0.08 mA
Current measurement resolution 0.01 mA
Input resistance 200 Ohm

Note: by feeding active probes, 12.5Vdc terminals are available (@I
maximum sum total <= 200mA)

Number 2

NTC measurement range
NTC measurement accuracy:
NTC measurement resolution
PTC measurement range
PTC measurement accuracy
PTC measurement resolution

-40°C - 100°C

±0.8°C

0.1°C

-50°C - 150°C

±1°C

0.1°C

Current measurement range 0 - 20 mA
Current measurement accuracy ±0.08 mA
Current measurement resolution 0.01 mA
Input resistance 200 Ohm
Voltage measurement range 0 - 10 V / 0 - 5 V
Voltage measurement accuracy ±20 mV
Voltage measurement resolution 0.001 V

Note :

1) Before applying 10V at the input check that the Jumper has been

removed;

2) The Jumper must be removed only for the 0 - 10 V input

3) To feed active probes, 12.5Vdc terminals are available (@I

maximum sum total <= 200mA)

Number 10

type Optoinsulated
Voltage range 12 - 24 Vac/dc
Detection time from OFF to ON 100 ms
Detection time from ON to OFF 100 ms

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C-PRO MEGA HARDWARE MANUAL

Note: The commons (COM) terminals are connected together

Analog outputs

Number 4

type voltage or current

(selectable by dip-switch),
optoinsulated

Jumper inserted Current
Current range 0 - 20 mA
Current output accuracy ±1 mA
Current output resolution 0.05 mA
Maximum load of current output 50 - 250Ω
Current output settling time 1 sec

Jumper not inserted Voltage
Voltage range 0,5 - 10 V
Voltage output accuracy ±200 mV (without load)
Voltage output resolution 10 mV
Maximum load of voltage output 200Ω
Voltage output settling time 1 sec

Note:

1) not protected output against permanent short circuit

2) ((Zl/(Zo+Zl) use load with impedance Zl>1KΩ

Digital outputs

Number 8

type electromechanical relays
With NO contacts
With SPDT contacts

6
2

Contact ratings 2000VA 250Vac, 8A

cosθ=1
6(4) accordino to
EN60730-1

Contact life cycle > 100.000

Note:

1)The commons (COM) terminals are not connected together

2) Primary insulation is guaranteed between the relays

Internal CAN
communication bus

Number 1

type CAN V2.0B

no optoinsulated

Physical layer 2 wires + common wire

(ISO 11898)
Baud rate (max. length = 10 m) 20K
Baud rate (max. length = 5 m) 50K
Baud rate (max. length = 2 m) 125K
Baud rate (max. length = 1 m) 500K
Connector Disconnectable screw

terminals

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C-PRO MEGA HARDWARE MANUAL

Note:

1) baud rate selectable by two jumpers

2) The CAN connection consists of a cable with twisted pair (both

shielded and not shielded). The first and the last elements of the
system must have the bus terminating resistor connected (impedance
is 120Ω). A second twisted pair is used for the feed and the ground

RS485 serial
communication
(UART1)

Number 1

type RS485, optoinsulated
Physical layer 2 wires + common wire
Baud rate (max. length 1000 m) 1200 - 19200
Connector Disconnectable screw

terminals
type RS232, optoinsulated
Physical layer Tx, Rx + 2 signals for

modem control + common

wire
Baud rate (max. length 3 m) 1200 - 19200
Connector Disconnectable screw

terminals

Note:

1) baud rate is selectable by parameters

2) The CAN connection consists of a cable with twisted pair (both
shielded and not shielded). The first and the last elements of the
system must have the bus terminating resistor connected (impedance
is 120Ω). A second twisted pair is used for the feed and the ground

RTC
(Real Time Clock)

Number 1

Backup type Supercap
RTC data retention time in the event of a

3 days
power failure

Buzzer Number

1

Signaling LEDs Number 6

The open case version of the controller is available with the fixed screw terminals only.

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C-PRO MEGA HARDWARE MANUAL

3.4 C-PRO MEGA built-in user interface

The C-PRO MEGA built-in versions has a 4x20 alphanumerical backlit LCD display and a keyboard with 9
buttons and 6 LEDs. Some buttons and LEDs are predefined; this means that their function has been set by the
firmware. Other buttons and LEDs are programmable; this means that they may be used freely within the UNI­PRO development system.

C-PRO MEGA
Built-in version

The following table shows the functions of the keyboard:

Buttons MAIN FUNCTION SECONDARY FUNCTION

Predefined UP Programmable

Predefined DOWN Programmable

Predefined LEFT Programmable

Predefined RIGHT Programmable

Predefined ESC Stand-By command

Predefined ENTER 1st level programming command

Programmable Alarm-off/Detection of alarms

Programmable

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C-PRO MEGA HARDWARE MANUAL

L0

L1

L2

LS

LP

Programmable

Controller parameter configuration

+

2nd level programming command

+

3rd level programming command

+

The following table shows the LEDs’ functions:

LED FUNCTION

LM

LS Programmable
LP Programmable
L0 Programmable
L1 Programmable
L2 Programmable

command

Predefined (blinks during controller parameters
configuration )

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C-PRO MEGA HARDWARE MANUAL

4 C-PRO EXP MEGA I/O expansion

C-PRO EXP MEGA I/O expansion allows to expand the I/O of the controller.
The expansion has the following inputs and outputs:

• 4 analogic inputs for NTC / 0-20 mA /4-20 mA , probes

• 8 low voltage digital inputs (12-24 VAC/DC)

• 8 digital outputs (relays) :

• 6 with 8 A res. @ 250 VAC (4 N.O./N.C. + 7 N.O.)

• 2 with 5 A res. @ 250 VAC (2 N.O.).

C-PRO EXP MEGA

Sealed case version

C-PRO EXP MEGA

Open case version

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C-PRO MEGA HARDWARE MANUAL

4.1 C-PRO EXP MEGA wiring layout

The length of the connecting cables reported on chapter 3 is valid also for the I/O expansion.
The C-PRO EXP MEGA wiring layout is here below reported showing the tables of the meaning of inputs and
outputs .

C-PRO EXP MEGA wiring layout

The controller and C-PRO EXP MEGA power supplies have to be electrically insulated one from the

other.

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C-PRO MEGA HARDWARE MANUAL

Lower board 12 VDC + 12 VDC power supply version

Conn.

C1-1 VCC main card power supply (+13Vdc)
C1-2 GND Main power supply reference
JD-1 VDC power supply for active sensors (*1)
JD-2 AI 5 analogic input 5, configurable (NTC, 0..20 mA, 4..20 mA)
JD-3 AI 6 analogic input 6, configurable (NTC, 0..20 mA, 4..20 mA)
JD-4 AI 7 analogic input 7, configurable (NTC, 0..20 mA, 4..20 mA)
JD-5 AI 8 analogic input 8, configurable (NTC, 0..20 mA, 4..20 mA)
JD-6 GND common terminal for analogic inputs

JF-1 COM common terminal for digital inputs
JF-2 DI 3 digital input no. 3 Vac/Vdc
JF-3 DI 4 digital input no. 4 Vac/Vdc
JF-4 DI 5 digital input no. 5 Vac/Vdc
JF-5 DI 6 digital input no. 6 Vac/Vdc
JF-6 COM common terminal for digital inputs

JG-1 COM common terminal for digital inputs
JG-2 DI 7 digital input no. 7 Vac/Vdc
JG-3 DI 8 digital input no. 8 Vac/Vdc
JG-4 DI 9 digital input no. 9 Vac/Vdc
JG-5 DI 10 digital input no. 10 Vac/Vdc
JG-6 COM common terminal for digital inputs

YA-1 VDC connector to power a remote terminal at 12 Vdc
YA-2 CAN1+
YA-3 CAN1­YA-4 GND GND connector Local CAN port

JH-1 NC 1 normally closed contact relay no. 1
JH-2 COM 1 common relay no. 1
JH-3 NO 1 normally open contact relay no. 1

JI-1 NC 2 normally closed contact relay no. 2
JI-2 COM 2 common relay no. 2
JI-3 NO 2 normally open contact relay no. 2

JK-1 COM 3 common for relay no. 3
JK-2 NO 3 normally open contact relay no. 3
JK-3 COM 4 common for relay no. 4
JK-4 NO 4 normally open contact relay no. 4
JK-5 COM 5 common for relay no. 5
JK-6 NO 5 normally open contact relay no. 5

JL-1 COM 6 common relay no. 6
JL-2 NO 6 normally open contact relay no. 6
JL-3 COM 7 common relay no. 7
JL-4 NO 7 normally open contact relay no. 7
JL-5 COM 8 common for relay no. 8
JL-6 NO 8 normally open contact relay no. 8

C2-1 VCC Not utilized
C2-2 GND Not utilized

Letter

code

YB PRG JST connector for programming purposes

Description

CAN + connector Local CAN port
CAN - connector Local CAN port

*1: VDC=12,5V Imax=200mA (as current sumof all VDC terminals)

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C-PRO MEGA HARDWARE MANUAL

Lower board 24 VAC/DC power supply version with built-in switching feeder

Conn.

CA-1 VCC main card power supply (24Vac/dc)
CA-2 VCC main card power supply (24Vac/dc)

Letter

code

Description

Jumper and LED meaning

In the controller some jumpers configuration are mounted:

JMP3 CAN termination

Jumper not inserted
Jumper inserted

(120Ω) termination not inserted
(120Ω) termination inserted

JMP4 Internal serial CAN Baud Rate selection

A

Jumper A inserted
Jumper B inserted

Baud rate = 20K

B
A

Jumper A inserted
Jumper B not inserted Baud rate = 50K

B
A

Jumper A not inserted
Jumper B inserted

Baud rate = 125K

B
A

Jumper A not inserted
Jumper B not inserted Baud rate = 500K

B

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C-PRO MEGA HARDWARE MANUAL

5. C-PRO EXP MEGA Dimensions / Installations

The C-PRO EXP MEGA dimensions are reported here below; all dimensions are in millimeters (inc).

Sealed case version

Open case version

The open case version is available with fixed screw terminals only.

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C-PRO MEGA HARDWARE MANUAL

6. Remote User interface

The user interfaces allow to install a display and keyboard remotely far from the controller .
“V-VIEW” user interface (with a alfanumeric 4 x 20 characters LCD display) can be connected to one of the
CAN port of the C-PRO MEGA controller. On request a graphic 240 x 128 pixel LCD display (V-GRAPH)
user interface is also available .

6.1 V-VIEW

The visualized text on the LCD display, the LEDs and key functions of the user interface are realized with UNI­PRO software development system and use a “browser” technology to load the C-PRO MEGA pages and to
refresh the visualized variable value. The user interface is directly interfaced with the controller without
downloading any software.
The typical implemental functionality are :

• intuitive navigation with “ browser style”

• text and icon combination

• tables utilization with “scroll” possibilities.

6.1.1.V-VIEW User Interface

V-VIEW

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C-PRO MEGA HARDWARE MANUAL

The following table summarizes the keyboard button meaning:

BUTTONS MAIN FUNCTION SECONDARY FUNCTION

Predefined as UP

Predefined as DOWN

Predefined as LEFT

Predefined as RIGHT

Predefined as ESC Stand-By command

Predefined as ENTER 1° programming level command

Programmable Alarm reset / identification

Programmable

Programmable

Programmable

Programmable

Programmable

Controller configuration parameters

+

command

2° programming level command

+

3° programming level command

+

The following table summarizes the meaning of the LEDs on front panel :

LED FUNCTION

LM

Predefined (blinking during the
parameters configuration of the

controller)
LS Programmable
LP Programmable
L0 Programmable
L1 Programmable
L2 Programmable
L3 Programmable
L4 Programmable
L5 Programmable

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C-PRO MEGA HARDWARE MANUAL

6.1.2 V-VIEW wiring layout

6.1.3. V-VIEW specifications

General specifications

Safety standards references EN 60730-1

Purpose of the device To be integrated in equipment
Electronic control device connections Plug-in terminal block 5mm pitch

for conductors up to 2.5 mm2
Storage temperature limits -20T70 °C (@RH<90% non-condensing)
Ambuent temperature limits -10T60 °C

0T50 °C for version with integrated LCD

(@RH<90% non-condensing)

Electrical shock protection classification

An integrated control device takes up the

classification of the equipment which it is

integrated with
PTI of insulation materials used >250

Housing

Installation Pannel mounting
Housing 160 x 160 mm

Electrical specifications

Power supply Main (input) 12Vdc, 0.2A

EEPROM Memory for parameters 256 byte

Microprocessor 16 bit CPU
Oscillator frequency 16 MHz

Number 1

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C-PRO MEGA HARDWARE MANUAL

Serial CAN Communication

Buzzer Number
LCD Dispay 4 x 20 alfanumeric backlight 1

Type CAN V2.0B

Physical Layer 2 wires + common, ISO 11898 standard
Baud rate (L max. = 10 m) 20K
Baud rate (L max. = 5 m) 50K
Baud rate (L max. = 2 m) 125K
Baud rate (L max. = 1 m) 500K
Connector Sconnectable terminals

Note: baud rate can be selected by parameter
Note: The physical level of the CAN consists of a cable with twisted pair (both shielded
and not shielded). The terminator's impedance is 120Ω. A second cable with twisted
pairis used for feeding and common (ground)

Buttons 12 Keyboard
Led 9

not optoisolated

1

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C-PRO MEGA HARDWARE MANUAL

7 Accessories

7.1 C-PRO AL switching feeder

C-PRO AL is a two output switching feeder able to provide the power supply to C-PRO MEGA programmable
controllers. The range of the C-PRO AL input voltage can be between 18 and 60 Vac/dc , while the output
voltage of feeder’s output is 13 Vdc (1,5 A) and 15 Vdc (0,15 A). C-PRO AL is available in 6 DIN modules
housing dimensions for DIN rail mounting installation.

C-PRO AL

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C-PRO MEGA HARDWARE MANUAL

7.1.1.C-PRO AL wiring layout

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C-PRO MEGA HARDWARE MANUAL

In the previous page, example of connection of C-PRO AL with C-PRO MEGA.
With the same secondary of the transformer, is possible to feed both C-PRO AL and the C-PRO MEGA low
voltage digital input (they work with 12-24 VAC/DC).
It is preferable :

• To connect the possible remote user interface to Local CAN (not optoinsulated)
port (providing the remote user interface with the necessary 12 Vdc power supply)

• To connect the possible expansion to the Wide CAN (optoinsulated) port.

The controller and C-PRO EXP Mega power supplies have to be electrically insulated one from the

other.

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C-PRO MEGA HARDWARE MANUAL

8 Configuration of the supplied analogic outputs signal

C-PRO MEGA has four analogic outputs.
Each analogic output can be configured to supply one of the following signal :

• 0,5-10 V (called “voltage”)

• 0-20 mA (called “current”)

• 4-20 mA (called “current”).

To configurate the signal supplied by the analogic output it is necessary :

• positioning the appropriate JMP6 jumper in the selected position (see chapter “C-PRO
MEGA wiring layout, jumper and LED meaning ; the configuration jumper is JMP6)

• confirming the choice selected with the “controller parameters” relative to the analogic
outputs as shown on the following paragraph .

8.1.1 Parameters configuration relative to the analog output

By logging on the controller parameters’ configuration procedure relative to the analogic outputs act in the
following way :

Both for the remote or built-in user interface :

1. Ensure that the controller and the user interface are both switched on and any utilization be connected
with the analogic outputs

2. Keep both and buttons pressed together for two seconds : firsts voice available
will be visualized.

3. Press and release button to select “Parameters”.

4. Press and release button : “Input Password” will be visualized.

5. Press and release button: the cursor blinks.

6. Press and release button to set “ -19”.

7. Press and release button: firsts available voice will be visualized.

8. Press and release button: further available voice will be visualized.

9. Press and release button to select one of the voice “Type AO1 … AO4”.

10. Press and release button: the cursor blinks.

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C-PRO MEGA HARDWARE MANUAL

11. Press and release or button to select the wanted value (0-20 mA or
4-20 mA or 0-10 V).

12. Press and release button to confirm the selected choice.

13. Repeat the selection for each analogic output “Type AO1 … AO4”.

14. Switch – off the controller

For a quick closing procedure:

8.1.2 Closing the analogic output configuration procedure

1. Press and release repeatedly button.

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C-PRO MEGA HARDWARE MANUAL

PRO EXP

9 CAN Connection

C-PRO MEGA can be connected to other controllers, to expansion modules and to one or more user interfaces
using either local or wide CAN serial port. The CAN bus uses the ISO 11898 standard, a balanced two-wire
communication very similar to the RS 485 standard.
Resistors with a recommended rating of 120-124 ohm have to be fitted at each end of the bus.

120ohm

If connection is established through the Local CAN bus, it is possible to power a user interface using the 4­terminal connector, according to the following table:

CAN+

CAN-

C-PRO MEGA V-VIEW User Interface

YA 1 (VDC ) PA 1 (VDC )

YA 2 (CAN+) PA 2 (CAN+)

YA 3 (CAN-) PA 3 (CAN-)
YA 4 (GND ) PA 4 (GND )

CAN

NODE
(C-PRO
MEGA)

CAN

NODE

(V-VIEW)

120ohm

CAN

NODE

(C-

MEGA)

The maximum number of expansions and user terminals is 32.
The maximum number of controllers for the user terminal V-VIEW is 2.

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C-PRO MEGA HARDWARE MANUAL

9.1.1. Notes on the parameter of the controller relative to the CAN

net configuration

To log on the controller parameters configuration procedure relative to the analogic output act in the following
way :

Both for the remote or built-in user interface :

1. Ensure that the controller and the user interface are both switched on and no utilization is connected
with the analogic output

2. Keep pressed at the same time and buttons for two seconds : the first available voice
will be visualized (the voices are relative to the controller; for the voices relative to the user
interface repeat the selection from “reset”).

To select the controller parameters relative to the CAN network configuration:

1. Press and release button to select “Network” voice.

2. Press and release button: if the controller is visualizing the net parameters, the voice “Input
Password” will be visualized: in this case see the following 3. and 4. (in opposite case see directly point 5.).

3. Press and release button: the cursor blinking.

4. Press and release button to set “ -19”.

5. Press and release button: the first voice available will be visualized; if it is visualizing the net
parameters relative to the controller, the question asked will be which communication port have to be referred
(Local CAN, Wide CAN, UART1 o UART2).

To select a parameter:

1. Press and release button

To modify a parameter:

1. Press and release button: the cursor blinking.

2. Press and release or buttons to select the value

3. Press and release button to confirm the selection done.

4. Switch – off the controller.

For a quick closing procedure :

1. Press and release repeatedly button

The main parameters of the CAN net are the following :

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C-PRO MEGA HARDWARE MANUAL

• “My Node” (represents the data sender ID ).

• “Network Node” (represents the receiver ID)

• Baud rate (represent the data transmissions speed; initially it can be useful to let this value
set at “Auto”; in this way the device will try to connect a few time with different speed);
Local CAN port baud rate can be set with “JMP4” jumper.

Predefined value :

• the parameter My Node for a controller is set at 1

• the parameter My Node for an expansion is set at 2

• the parameter My Node for a user interface is set at 99.

Every device in the network represents a knot (the maximum knot numbers are 32); each knot has an ID (the Id
range is from 1 to 127).

Every device in the network has to be set as regards the network components through “Network Node”
parameters.

Example:
If a controller, an expansion and a user interface are installed, set the following value on the controller in the
following way :

1. Assign at “Network Node 1” the address “2” (expansion).

2. Assign at “Network Node 2” the address “99” (user interface).

Repeat the same operations for the expansion and the user interface.

ATTENTION: the parameters as regards the net could be overwritten by the application software.

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C-PRO MEGA HARDWARE MANUAL

Hardware Manual C-PRO MEGA.

1.01 Versioni September 2007.
Codice 114CPRMHWE01.
File 114CPRMHWE01.pdf.

This document is the exclusive property of Evco, whereby any reproduction or distribution is strictly forbidden, unless expressly directly authorised by Evco. Evco
assume no responsibility in relation to the characteristics, technical data and any possible errors reported in this document or deriving from the use of the same. Evco
cannot be held responsible for any damage caused by failure to observe these warnings. Evco reserves the right to make modifications of any kind and without prior
warning without prejudicing the essential operational and safety characteristics.

Page 47

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