SB CM01+ User Manual
Contents
1. Isolation voltage 1000VDC RS232 port with surge protection RS485 port with lightning protective device Repeatable surge capacity lpp 100A 10 700us 4KV Standard complied ITU TK20 21 VDE 0433 15KV ESD static electricity protection Recoverable overcurrent protection RS485 port can withstand the sustained overcurrent caused by voltage up to 60V Maximum communication distance of RS232 30m maximum communication distance of RS485 187 5K 1000m Built in RS485 terminal resistance and biasing resistor switch to enable Power consumption 0 7W Operating temperature 40 85 C Dimension W H D mm 35 52 2 16 in casing SB CM01 configuration and functional blocks diagram DC DC BENA DC DC isolated EEPROM Prasat Isolation devices J a 1 PEHR MA HJI m Habinind EAF sl Pog RS485 protection devices RS485 chip Ty ea a SEBAS 4 Pe Swe A Relay Sevan gt en RS232 A oD i RS232 chip RRR Ey Overcurrent a 7 if protective device kT inBfhigerk Terminal Blocks Terminal resistance setting switch Connect S7 200 SMART PLC and the computer with network cables before using SB CM01 and set the interface type address baud rate and other parameters of the signal interface board SB CM01 in STEP 7 MicroWIN SMART software When configuring SB CM01 as the RS232 interface terminal resistance setting switch is invalid When configuring SB CM01 as RS485 interface there is n2. Isolated RS485 232 Interface Board for S7 200 SMART SB CM01 User Manual SB CM01 is an isolated RS485 232 interface board developed for Siemens S7 200 SMART PLC It adopts the most advanced magnetic isolators to isolate RS485 and RS232 signals and is designed with lightning protection devices and PTC overcurrent protective device solving the grounding interference and interface burning problem of various RS485 232 nodes resulting from different ground potential Its a good choice to improve reliability and stability of the communication particularly noticeable when communicating with the inverter and extend the communication distance Isolated SB CM01 interface board is completely compatible to Siemens non isolated interface board SB CM01 and can be directly replaced Its built in terminal resistance and biasing resistor make it easier for wiring The following table shows the differences between these two interface boards Interface board Siemens non isolated Isolated RS232 maximum communication 10m 30m a A RS485 maximum communication 50m 1000m distance 187 5Ks resistor RS485 lightning protection and No Yes overcurrent protection Number of terminal 6 cores with 5V bias voltage output for 5 cores without bias voltage output external terminal resistance and and built in terminal resistance and biasing resistor biasing resistor Plastic casing No use the plastic casing of CPU body Main technical parameters of SB CM01
3. MO1 part in Siemens S7 200 SMART System Manual
4. o terminal resistance and biasing resistor if the switch is off If it s a 2209 terminal resistance and two 390 2 biasing resistor will be connected internally Terminal signal definition on SB CM01 interface board Shield Case earthing grounding RS232 Tx out RS485 B signal positive Request to send TTL electrical level Signal earthing RS232 Rx in RS485 A signal negative Isolated iW Isolated T 7 N T z D Isolated 390 220 390 sPA 5V SB CM01 functional block diagram SB CM01 installation SB CM01 is not supplied with casing it needs to use the supplied of S7 200 SMART CPU body Switch off PLC power remove the supplied SB CM01 casing of CPU insert the SB CM01 interface board on the casing and then insert it to the CPU After hearing a Clicking sound the SB CM01 is connected correctly with CPU The installation and software programming of isolated SB CM01 are completely identical with those of Siemens non isolated SB CM01 When it s located on the two terminal nodes of RS485 network segment and the terminal resistance setting switch is on it avoids the trouble to externally connect the terminal resistance and biasing resistor with Siemens SB CM01 as the terminal node Ams TAS TEZE GD E er SB CM0O1 SB CMO1 SB CMO1 EESE CE 21 RRNA DASS Ja off OFF peN q For the detailed application method of SB CM01 please refer to the SB C
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