Evco EPH4EXP Hardware manual Manuel d'utilisateur télécharger pdf (Page 42)

EVCO S.p.A. c-pro 3 | Hardware manual ver. 3.2 | Codice 114CP3E324

page 42 of 116

For example: a CAN network can be made of a programmable controller, of four I / O expansions and of four user interfaces

with baud rate 500,000 baud.

The maximum length of the connecting cables of the CAN port depends on the baud rate of the CANbus communication, as

follows:

- 1,000 m (3,280 ft) with baud rate 20,000 baud

- 500 m (1,640 ft) with baud rate 50,000 baud

- 250 m (820 ft) with baud rate 125,000 baud

- 50 m (164 ft) with baud rate 500,000 baud.

Connect the CAN port using a twisted pair.

For the settings about the CAN port look at chapter 6 “CONFIGURATION”.

For the models with MP-Bus port the connectors have the following meaning.

Terminal Meaning

CAN + not connected

CAN - / MP signal

GND ground

The maximum number of devices that can make a MP-Bus network is 8.

To the MP-Bus port can be connected the Belimo’s devices that manage correctly the commands MP_Get_SeriesNo,

MP_Set_MP_Address (that allow the configuration of the network) and MP_Set_Relative (that allows to drive the position of the

actuator).

If you want to connect a probe (or a relay) to the actuator, the device must also manage the commands MP_AD_Convert (that allows to

read the probe value) and/or MP_Get_Forced_Control (that allows to read the relay status).

The maximum length of the connecting cables of the MP-Bus port is 10 m (32 ft).

Connect the CAN port using a twisted pair.

For the settings about the CAN port look at chapter 6 “CONFIGURATION”.

DIGITAL INPUTS

Digital inputs 8, 9, 10, 11 and 12.

Terminal Meaning

DI8 digital input 8

DI9 digital input 9

DI10 digital input 10

DI11 digital input 11

DI12 digital input 12

COM common digital inputs

The maximum length of the connecting cables of the digital inputs is 10 m (32 ft).

The digital inputs can be used on condition that they are powered at 24 VAC / DC.

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Evco EPH4EXP Hardware manual Manuel d'utilisateur Page 42