B&R ECE161-0 MULTI digital input module

B&R ECE161-0 MULTI digital input module 

Material number:

ECE161-0

Description:

MULTI digital input module 16 inputs 24 VDC/VAC 0->1: 10 msec, 1->0: 20 msec Sink/source

RemoteI/O allows remote I/O modules to be connected to the CPU over long distances. A bus

cable is used to connect the Remote Master Module and up to 31Remote Slaves. A new I/O

bus which can address a maximum of13modules begins with every slave

Note the following:

• The remote master is a system module and must therefore be situated on the main base

plate.

• The remote slave is in a power supply module on the expansion backplane.

• The slave address is set with a node number switch on the remote slave. This number is

then used for addressing a remote I/O bus

Bus Cable (according to DIN19245. Part3)

The remote master and slave modules are connected using two twisted pair cables which must

conform to the following specifications.

The twisted pair cable must be terminated on both ends with a terminating resistor.

Figure 26: Wiring remote master and slave modules

Specifications

Wave Impedance 135 - 165 Ω (3 - 20 MHz)

Distributed Capacitance <30 pF / m

Loop Resistance <110 Ω/ km

Wire Diameter > 0.64 mm

Wire Cross Section > 0.34 mm

The remote bus is fitted with terminating resistors at both ends. Terminating resistors are

integrated in all B&R remote bus connectors 0G1000.00-090. The terminating resistors can be

turned on or off

The cabling described for the remote I/O bus (bus cable, terminating resistors) is also used for

PROFIBUS. The PROFIBUS network modules available from B&R are NW150 for the B&R

SYSTEM 2005 and NW100 for the B&R SYSTEM 2010.

2.1.5  RS485 Network

The cabling described for the remote I/O bus (bus cable, terminating resistors) is also used for

an RS485 network

2.2  Configuring a Mixed System

2.2.1  Bus Expansion

An expansion slave of a 2010 or 2005 system can be coupled to an expansion master of the

other system. The following restrictions must be noted:

2005 to 2010

Expansion slaves from 2005 expansion backplanes can be connected directly to a 2010

expansion master (maximum 4 per 2010 system). For this type of expansion, both interfaces of

the 2010 expansion master can be used. Only the following configurations are permitted.

Depending on the chosen configuration, the expansion backplane number must be addressed

in the programming system with the following numbers

B&R 2010 I/O modules can be connected to a 2005 expansion master with an expansion slave

(which has a power supply module inserted into the expansion slot), or to a 2005 expansion

slave (Expansion Slave OUT).

The module address of the 2010 expansion slave is set with a node number switch, from where

the 2010 I/O module addresses begin. Settings are made in steps of ten (00. 10. ...,90). A

maximum of 20I/O modules can be installed on one of these bus segments. However, it is

possible to use up to 99modules with a 2010 expansion master.

2.2.2  RemoteI/O Bus

A remote master (B&R SYSTEM 2005. B&R SYSTEM 2010 or B&R SYSTEM 2000 Logic

Scanner) can be connected with up to 31remote slaves. It is also possible to mix the B&R 2003.

B&R 2005 and B&R 2010 systems.

Each remote slave starts a new I/O bus. The maximum number of slots available depends on

the type of slave

2.3.1  CAN Bus Features

• Low costs

• High noise immunity through differential signals

• Bus structure

• Open system

• Fast data transfer for small data packages (up to 8 bytes)

• Error detection by means of CRC (Cyclic Redundancy Check) and frame testing ->

hamming distance 6

• Predictable transmission time for highpriority messages (real-time behavior)

• Easy to use

2.3.2  Bus Length and Cable Type

The type of cable used depends largely on the required bus length and the number of nodes.

The bus length is mainly determined by the bit rate.

The following bus lengths are permitted with a maximum oscillator tolerance of 0.121%

Relationship between the number of nodes and bus length for certain cable types using B&R

default settings: