22A-D2P3N104

22A-D2P3N104模擬量輸入模塊

模擬量輸入用于連接電壓和電流傳感器、 熱電耦、電阻和熱電阻， 用來實(shí)現(xiàn)PLC 與模擬量過程信號(hào)的連接。

模擬量輸入模塊將從過程發(fā)送來的模擬信號(hào)轉(zhuǎn)換成供 PLC 內(nèi)部處理用的數(shù)字信號(hào)。

本次工程用的是 SM311 輸入模塊如下圖所示。該模塊具有如下特點(diǎn)：

分辨率為 9 到 15 位+符號(hào)位（用于不同的轉(zhuǎn)換時(shí)間） ，可設(shè)置不同的測(cè)量范圍。

通過量程模塊可以機(jī)械調(diào)整電流 /電壓的基本測(cè)量范圍。

用 STEP 7硬件組態(tài)工具可進(jìn)行微調(diào)。模塊把診斷和超限中斷發(fā)送到可編程控制器的 CPU 中。

模塊向 CPU 發(fā)送詳細(xì)的診斷信息。

接線方式

兩線制電流和四線制電流都只有兩根信號(hào)線， 它們之間的主要區(qū)別在于：兩線制電流的兩根信號(hào)線既要給傳感器或者變送器供電，又要提供電流信號(hào) ；而四線制電流的兩根信號(hào)線只提供電流信號(hào)。

因此，通常提供兩線制電流信號(hào)的傳感器或者變送器是無源的 ；而提供四線制電流信號(hào)的傳感器或者變送器是有源的。

當(dāng) PLC 的模板輸入通道設(shè)定為連接四線制傳感器時(shí)， PLC 只從模板通道的端子上采集模擬信號(hào)， 如圖 2-3，而當(dāng) PLC 的模板輸入通道設(shè)定為連接二線制傳感器時(shí)，如圖 2-2，PLC 的模擬輸入模板的通道上還要向外輸出一個(gè)直流 24V的電源，以驅(qū)動(dòng)兩線制傳感器工作。

SYMBOL MOTOROLA LS4208-SWZM0100ZR Kit: IBM 468x/9x Port

SYMBOL MOTOROLA 11-43912-50R Stylus: Tethered 50 Pack 1

Motorola/symbol 2a Ls4208-swzr0100ar Ls4208-sw

FREE shipping Generous 30-day return policy

Expedited shipping available

Motorola/symbol 2a Ls4208-sbzr0100ar Ls4208 Rs232-db9f

FREE shipping Generous 30-day return policy

Expedited shipping available

SYMBOL MOTOROLA LS4208-SWZR0100AR Kit: RS232-DB9F, 7ft

SYMBOL MOTOROLA LS4208-SBZR0100AR LS4208 BLACK SCANNER

SYMBOL MOTOROLA LS4208-SWZR0100AR Kit: RS232-DB9F, 7ft

NEW Motorola Symbol LS9208i Bar Code Reader

Expedited shipping available

Motorola/symbol 2a Ls9203i-7nnu0100sr Ls9203i

FREE shipping Generous 30-day return policy

Expedited shipping available

Motorola Symbol Bar Code Reader LS4208-SWZR0100AR

Expedited shipping available

NEW Motorola Symbol LS9208i Bar Code Reader

Expedited shipping available

NEW Motorola Symbol LS4208 Handheld Bar Code Reader - B

Expedited shipping available

Motorola Symbol LS 4208 Handheld Bar Code Reader

SYMBOL MOTOROLA LS4208-SBZU0300ZR Kit: USB Power +, 7ft

SYMBOL MOTOROLA RD5000-MOUNTKT-US MOUNTING KIT: RD5000

NEW Motorola Symbol LS3008 Bar Code Reader

Expedited shipping available

Motorola/symbol 2a Ls4208-pr20007zzr Ls4208 Scnr

FREE shipping Generous 30-day return policy

Expedited shipping available

SYMBOL MOTOROLA LS4208-SBZU0300ZR Kit: USB Power +, 7ft

DS6707 Symbol Barcode Scanner by Motorola

SYMBOL MOTOROLA LS9208-SR11007NNWR LS9208I:HF NO STAND,

SYMBOL MOTOROLA LS4208-PR20007ZZR SCNR:MULTI-INTRFCE,PD

SYMBOL MOTOROLA LS9208-SR11001NNWR LS9208i CR WHITE,NO

MOTOROLA-SYMBOL MC9062 HAND HELD MOBILE COMPUTER 

Motorola Symbol Ls 4208 Bar Code Reader - Handheld Bar

FREE shipping Generous 30-day return policy

Expedited shipping available

SYMBOL MOTOROLA LS4208-SWZU1200ZR Kit: USB Series A, 9f

SYMBOL MOTOROLA LS4208-SBZU1200ZR Kit: USB Series A, 9f

Motorola/symbol 2a Ls4208-swzu1200zr Ls4208 Kit: Usb

FREE shipping Generous 30-day return policy

Expedited shipping available

SYMBOL MOTOROLA LS4208-PR20007ZZR SCNR:MULTI-INTRFCE,PD

SYMBOL MOTOROLA LS9208-SR11007NNWR LS9208I:HF NO STAND,

MOTOROLA SYMBOL DS6707 WIRED DS6707-SR20007ZZR

SYMBOL MOTOROLA LS4208-SBZU1200ZR Kit: USB Series A, 9f

SYMBOL MOTOROLA LS4208-SWZU1200ZR Kit: USB Series A, 9f

SYMBOL MOTOROLA CRD1000-4000UR CRADLE:MC1000 W/POWER SU

SYMBOL MOTOROLA KT-70924-02R KIT:MODEM, MC1000

SYMBOL MOTOROLA LS9203-SR11007NSWR LS9203I:HF STAND,TWL

SYMBOL MOTOROLA LS4208-SWZK0200ZR KIT: KEYBOARD PS/2 9F

SYMBOL MOTOROLA LS4208-SBZK0200Z KIT: KEYBOARD PS/2, 9F

Motorola Symbol Ls 4208 Bar Code Reader - Handheld Bar

FREE shipping Generous 30-day return policy

Expedited shipping available

Motorola/symbol 2a Ls4208-swzu0100zr Kit- Ls4208

FREE shipping Generous 30-day return policy

Expedited shipping available

Motorola/symbol 2a Ls4208-sbzu0100zr Ls4208 Usb Series

FREE shipping Generous 30-day return policy

Expedited shipping available

SYMBOL MOTOROLA KT-70924-02R KIT:MODEM, MC1000

Motorola Symbol Barcode Scanner LS3478 - 12 hrs of use!

Symbol Motorola WSAP-5100-100-WW

WSAP5100 AP300 External Antennas

Enlarge

Motorola Symbol Barcode Scanner DS6608 USB Biege New

SYMBOL, MOTOROLA 4 SLOT CRADLE WT4090, WT4070 ETHERNET

SYMBOL MOTOROLA LS4208-SWZU0100ZR LS4208 WHITE SCANNER

SYMBOL MOTOROLA LS4208-SBZU0100ZR LS4208 BLACK SCANNER

Motorola Symbol Barcode Scanner PDT3416 New 3416

Motorola Symbol MC9063-S Barcode Scanner Verizon *New*

NEW Motorola Symbol LS 4208 Bar Code Reader

Expedited shipping available

SYMBOL MOTOROLA LS4208-SBZK0200Z KIT: KEYBOARD PS/2, 9F

SYMBOL MOTOROLA LS9203-SR11007NSWR LS9203I:HF STAND,TWL

SYMBOL MOTOROLA LS4208-SBZU0100ZR LS4208 BLACK SCANNER

SYMBOL MOTOROLA LS4208-SWZU0100ZR LS4208 WHITE SCANNER

NEW Motorola Symbol LS 4208 Bar Code Reader

Expedited shipping available

SYMBOL MOTOROLA LS4208-SWZK0100ZR LS4208 WHITE SCANNER

SYMBOL MOTOROLA CHS9000-4001C 4 SLOT CHARGING CRADLE

SYMBOL MOTOROLA LS4208-SBZK0100ZR LS4208 BLACK SCANNER

Motorola Symbol Bar Code Reader LS4208-SBZU1200ZR

Expedited shipping available

Motorola Symbol Bar Code Reader LS4208-SWZU1200ZR

Expedited shipping available

SYMBOL MOTOROLA LS4208-SWZK0100ZR LS4208 WHITE SCANNER

SYMBOL MOTOROLA CS3000-SR10007R CS: KEYFOB SCANNER,BATC

NEW Motorola Symbol LS 4208 Bar Code Reader

Expedited shipping available

SYMBOL MOTOROLA LS4208-SBZK0100ZR LS4208 BLACK SCANNER

Motorola Symbol LS 4208 Bar Code Reader

Expedited shipping available

Motorola Symbol LS 4208 Bar Code Reader

Expedited shipping available

Motorola Symbol Bar Code Reader LS4208-SWZU0100ZR

Expedited shipping available

Motorola Symbol Ls 4208 Bar Code Reader - Handheld Bar

FREE shipping Generous 30-day return policy

Expedited shipping available

Motorola Symbol Ls 4208 Bar Code Reader - Handheld Bar

FREE shipping Generous 30-day return policy

Expedited shipping available

SYMBOL MOTOROLA STB3578-C0007WR CRD:CHG & RADIO,TWL BLK

NEW Motorola Symbol LS 4208 Bar Code Reader

Expedited shipping available

Motorola Symbol LS2208 Bar Code Reader