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Siemens S7-400 User's Manual

1. Application High speed response Interconnection with low data volumes Low cost High speed With one variable With two variable inter interface faces Transmission rate High 115 200 bit s Low 38 400 bit s High 115 200 bit s Loadable protocols MODBUS Master 1AA Order No group 6ES7 340 MODBUS Slave 1AB Data Highway 1AE Module cP 440 cP 441 1 CP 441 2 a Order No group 6ES7 440 1 441 1 441 2 Physical transmission media RS 232C V 24 l l R All transmission methods all interface modules 20 mA TTY ail plug in serial RS 422 485 X 27 up to 32 nodes Integrated transmission protocols ASCII e Printer driver n 3964 R o RK512 _ SIMATIC Modular Controllers 59
2. Siemens AG 2011 Point to point connection Scanner Point to point link via communications processors CPs is an i Barcode extremely powerful and low cost alternative to bus systems The advantage of point to point links over bus systems is es pecially pronounced when only a few RS 485 devices are to y Process controller reader be connected to the SIMATIC S7 The CPs can also easily link third party systems to the SIMOVERT SIMATIC S7 Thanks to the great flexibility of the CPs different SIMOREG physical transmission media transmission rates or even cus tomized transmission protocols can be implemented The CPs have a rugged plastic housing with LEDs for displaying Operating states and faults For each CP there is a configuring package on CD with elec tronic manual parameterization screen forms and standard function blocks for communication between the CPU and Printer Robot BDE 3rd party the CP control terminal PLC The configuration data are stored in a system block and Point to point links for SIMATIC 7 400 backed up in the CPU When modules are replaced the new module is therefore immediately ready for use With the S7 400 point to point link modules adaptation to the physical transmission media is achieved by plugging in the relevant interface submodules without the need for external converters Technical data Point to point connection

Siemens S7-400 User's Manual

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