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.

1336-L4 Input module

Open circuit detection Open circuit detection is configurated by user program or TCZ. 9.2.1 Detection for inputs A resistor has to be mounted in parrallele of the input captor. With an inductive captor, the minimal current is 1mA. Resistor : from 20 kOhm to 30 kOhm Detection for I>I overload for a time T, output is momentanely opened (The value is written in the technical description of each module). B - Short-circuit When I>I short-circuit, the output is reset to "0" up to a quit of the fault (The value is written in the technical description of each module). 9.4 Diagnosis of the various central units All details of the failures described above can be reached in the central units by the fonction MAILBOX or in specific diagnosis variables (cf central units descriptions).

Central processing units

The central units 07 KR 31 and 07 KT 31 work either as: ● Bus master in the decentralized automation system ABB Procontic CS31 or as ● Intelligent I/O (Slave remote processor) in the decentralized automation system ABB Procontic CS31 or as ● Stand-alone central unit. The 07 KR 31 and 07 KT 31 have a 24V d.c. or 120V a.c. or 230V a.c. power supply voltage. Main features : ● 12 binary inputs ● 8 binary relay outputs for the 07 KR 31 unit 8 binary transistor outputs for the 07 KT 31 unit ● 1 supply output regulated 24V d.c. for the versions 120V a.c. and 230V a.c. ● 1 counting input for counting frequencies up to 10 kHz ● 1 CS31 system bus interface for system expansion ● Serial interface COM1 : – is set as programming interface – can be set as an ASCII interface for connecting peripheral devices (e.g. MMC devices) – can be set as a MODBUS interface : master and slave.

Project planning / start-up

The following has to be observed for project planning and start-up : ● Programming is performed using ABB Procontic programming software, which can be run on commercially available IBM compatible PCs (see documentation for programming system 907 PC 331). ● Diagnosis and service device TCZ (terminal mode) (see volume 7.3, see chapter 9 "Programming and test" and chapter 3.5 "serial interface") The processor processes the user program contained in the RAM. It is loaded into the RAM via the serial interface COM1 and can also be changed there. An additional save command is used to save the program in the EEPROM. NOTE : In the course of the following operations – Power "ON" – RUN/STOP switch from STOP ––> RUN – Program start-up with programming system – Cold start of the PLC The RAM is overwritten by the contents of the EEPROM. ● On-line program modification The two existing RAMs allow a quick modification of the user program to be performed without interrupting the operation (see chapter 9.1 ON-LINE modifications or see ABB programming system 907 PC 331).