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.

CI854A 3BSE030221R1 Pulse input module

The bus must be terminated with a 120 , 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 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.

Ground concept 

All CS 31 products in a cabinet must be connected to the same earth. When the remote units are outside the cabinet, they must be connected to the nearest earth. The connection to the earth has to be as short as possible (shorter than 25 cm)The capacitor is integrated in the plug-in base. When the cabinets are close from each others, the different earths have to be connected together with a cable with a cross section of at least 16 mm2 .The noisy elements (drives, motors, ...) haven't to be connected to the earth between two cabinets. The connection to the earth has to be near the noisier element. ● Types of power supplies Different types of power supplies are available. The main difference is the connection of the neutral and the metallic parts to the earth. Power supply T-T – The neutral is connected to the earth. All metallic parts are connected to the earth Power supply I-T - The neutral is isolated from the earth - The metallic parts are connected to the earth

Transmission format

 One single CPU is the master on the bus, all of the other remote units or CPU are considered to be slaves. The master CPU manages up to a maximum of 31 remote units on one bus. All messages are terminated with an error check (CRC8).During initialization, the central unit interrogates all of the remote units in succession, thus building an image of the system configuration. On each cycle of the bus all of the remote units are interrogated. This updates all diagnosis information and recognizes additional remote units. If the CPU or one of the remote units receives a message with a (CRC8) error, it is ignored. After ten consecutive transmission errors, an error "Bus error" is generated on the remote units and within the diagnostics of the central unit