The main products

Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,

Brand advantage: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft etc. Various kinds of imported industrial parts

Products are widely used in metallurgy, petroleum, glass, aluminum manufacturing, petrochemical industry, coal mine, papermaking, printing, textile printing and dyeing, machinery, electronics, automobile manufacturing, tobacco, plastics machinery, electric power, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution and so on.

CI867 3BSE043661R1 Pulse input module

Programming software All programming packages are used with an IBM AT compatible personal computer. Expensive dedicated programming units are therefore not necessary as the computer is connected directly to the integral programming port of the central unit. 4.2.1 Software for 07 KR 91/ 07 KR 31 central unit The higher level functions (data manipulation, communication and PID regulation etc...) of the 07 KR 91 central unit are programmed using the 907 PC 331 Package.Some installation rules have to be respected. These rules concern the ground concept, the connection of the CS 31 bus and the different power supplies installations. The following main principles must be applied : Each type of signal has to be mounted separatly – power supply 230 VAC – analogue and low voltage signals The ground and power supply wires must be connected in star ● Refer to the description of each remote unit for connection of inputs and outputs.

● Installation of the bus

 The CS 31 bus is a RS 485 serial line and a schield twisted pair. The CS 31 bus is a master slave bus. Only one master can be present on the bus. The maximum length between the both extremities is 500 metres. The master should be : – a central unit : 07 KR 31, 07 KR 91, 07 KT 92, 07 KT 93, PCZB, UCZA/UCZB – a PLC coupler : 07 CS 61 and 07 CS 91 for the ABB Procontic T 200 and T 300 – a PC board : 07 CM 90 ● Characteristics of the bus' cable The CS 31 bus is a shield twisted pair RS 485 – cross 0.22 ... 0.8 mm2 – twists > 10 per metre – resistance ≤ 100/km – impedance ● Characteristics 100 to 150 Ω – capacitance < 150 nF/km – schield – termination 120 Ω, 1/4 Watt resistor connected at the ends of the bus

Connections The same type of cable should be used throughout the installation for the system bus (RS 485). Avoid interruption of the bus, for example, when connecting cables at the marshalling cabinet. Whenever interruption of the bus is absolutely necessary, it must be wired to the same side of the terminals.

● Bus topology

The bus must be terminated with a 120 Ω, 1/4 Watt resistor, this must be connected at the ends of the bus. The central units UCZA/UCZB, the couplers 07 CS 61 and 35 CS 91 have to be connected at an end of the bus. The resistor 120 Ω is integrated. The other central units and the PC board should be connected everywhere on the bus. The shield of the bus must be connected to the earth near the master When noisy elements are in the area of the cabinet, it is better to connect the bus' shield to the ground via a capacitor 1 nF class Y directly at the access of the cabinet according the following diagram.The system bus CS 31 is opto-isolated from all units. The shield is connected to the earth through a capacitor 1 nF class Y, mounted in the plug-in base. The maximum bus length is 500 metres. In case of use of a bus amplifier or redondy amplifier refer to their own descriptions.