Siemens S7 - The commonly used module and function - 1500 PLC

S7 - today to tell you about 1500 commonly used module of PLC S7 - 1500 PLC controller is modular structure design of the PLC, each individual can conduct extensive combination between modules and extension, its main component of the power supply module ( 点/ PS) And the central processor module ( CPU) , guide rail ( 架) , signal module ( SM) , communication module ( CP /厘米) And process module ( TM） And so on.

( 1) , power supply module ( 点/ PS)

used to CPU and its extension module provides + 24 v DC power supply.

PM: no backplane bus, do not take up the slot, no firmware version ( Similar PS307)

PS: backplane bus, take up the slot, firmware version, Similar PS407)

( 2) And the central processor module ( CPU)

mainly include standard CPU ( Such as: CPU1511 - 1 pn) Compact CPU (

Such as: CPU1512C - 1 pn)

distributed modules (CPU Such as: CPU1510SP - Type 1 pn

process CPU ( Such as: CPU1511T - 1 pn)

fail-safe CPU module ( Such as: CPU1511F - 1 pn)

by the red letters can distinguish what kind of CPU is

3) , guide rail ( 架)

is to install S7 - 1500 all kinds of module frame, it is special shaped plate, standard length is 160/245. 。 。 2000, can according to actual use. S7- 300/1200/1500 on the guide rail of the backplane bus. But S7 - 400 a backplane bus, indispensable.

( 4) , memory card, SD）

used to store the PLC program, and can be read directly from the PC, does not support hot plug. Read 500000 times life, the biggest 32 gb

note: S7 - 300 of MMC, PC can't directly read need apply mutatis mutandis to card reader device.

( 5) , signal module ( SM)

basic: BA

standard: ST

high performance: HF

6) , process module ( TM）

is mainly used in the control of the real-time and high storage requirements.

counting module ( High speed input) Position: TM Count2

test module ( High speed input) : TM Poslnput2

regarding module ( High speed output) :TM美国专利商标局

( 7) , communication module ( CP /厘米)

used between PLC, communication between PLC and computer and other smart devices, PLC access Ethernet, PROFIBUS and can be AS - I network, or used in serial communication. It can reduce the burden of CPU communication, and reduce the communication function of programming work.

there are two major categories:

PRIFIBUS: CM - 1542 5,CP1542 - 1542 - 5

PROFINET:厘米 1,CP1543 - 1

等 200 distributed peripheral module

is Siemens PRIFIBUS or PROFINET based distributed control module, application is very wide.

1, ET200SP: is a kind of multifunctional according to a modular distributed I/O system, volume is small, to be installed in the control cabinet.

2, ET200MP: is a kind of multi-channel, distributed I/O system can be used S7 - 1500 modules, to be installed in the control enclosure, is widely used.

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