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.

TOSHIBA 2N3A3620-B Semiconductor module

One advantage is that RCOM (Remote COMmunication) permits large distances to be spanned. Communication can be performed via various transmission media, such as: – leased or private dedicated lines – existing cable paths, – telephone lines (dial–up connections). Adaptation to the required transmission path can be performed by selection of various modems (e.g. VF or current loop modems, telephone modems, multidrop modems). An RCOM network always consists of the master and one or more slaves, with the following data transmission options: – Master transmits data to a slave, – master reads data from a slave, – event–driven transmission: a slave can store process events with a time stamp and transfer them to the master on request (event polling). 1.2 Features – The RCOM 07 KP 90 R202 communication module can be planned as RCOM master or slave. – A network may have up to 254 RCOM slaves (max. 8 slaves if using MasterPiece 200, max. 30 slaves in case of dial–up mode).

The RCOM protocol is compatible

 with MP200/1 with DSCA 180A. All RCOM services are available (cold start, warm start, normalization, clock synchronization, write data, read data, event polling). – The RCOM interface for connection of the modem complies with EIA RS–232. It can also be used as an EIA RS–485 interface. – An additional operator interface (CONSOLE) complying with EIA RS–232 is provided as a commissioning aid (indication of the communication sequence, planning telephone numbers etc.) – Software clock; time can be used in the PLC program. 1.3 Planning with the 907 KP 90 R202 software package The communication sequence is planned with connection elements contained in the 907 KP 90 R202 documentation and software package (see also Ordering information). This package also contains the manual for the RCOM 07 KP 90 R202 communication module and planning examples.

Electrical connection

The following illustration shows an application example with the 07 KT 93 which utilizes various possibilities for connecting inputs and outputs. Attention must be paid to the following in detail:
The earthing measures
Connection of the communication module 07 KP 90 R202
Looping through the supply voltage (24 V DC) from the 07 KT 93 to the 07 KP 90 R202
Earthing the switch cabinet mains socket
Handling serial interfaces

Earth connection: Use supplied parts (see Figure 6) 2 Supply voltage: Short, direct connection between the modules, wires 15 cm, 2.5 mm2 (see Figure 6) 3 Cable shields: In the case of permanent wiring at the switchgear cabinet inlet, earth via clamps and do not put shield in the plug. Otherwise, lay the cable shield in the plug to PGND.