Selecting Pneumatic Valve Actuation and Safe States
A practical guide to manual, pilot and solenoid pneumatic valves, covering port functions, monostable and bistable behavior, PLC outputs, safe states, commissioning and fault diagnosis.
Manufacturer: Allen-Bradley
Product No.: 1756-L55M16
Country of origin:United States
Product Type: ControlLogix Controller
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 350g
Shipping port: Xiamen
Warranty: 12 months
The Allen-Bradley 1756-L55M16 is a ControlLogix5555 programmable automation controller designed for chassis-based industrial control applications. This unit features an integrated 1756-M16 memory board providing 1.5 MB of data and logic memory capacity. Positioned in any slot of a ControlLogix chassis, the 1756-L55M16 manages sequential, process, motion, and drive control tasks while providing built-in serial RS-232 communication capability for workstation interface and system diagnostics.
| Specification | Value |
|---|---|
| Model | 1756-L55M16 |
| Controller Family | ControlLogix5555 |
| Included Memory Board | 1756-M16 |
| Data and Logic Memory | 1.5 MB |
| Nonvolatile Memory | No |
| Backplane Current @ 5.1V DC | 1.23 A |
| Backplane Current @ 24V DC | 0.014 A |
| Power Dissipation | 5.6 W |
| Thermal Dissipation | 19.1 BTU/hr |
| Operating Temperature | 0 to 60 degC (32 to 140 degF) |
| Storage Temperature | -40 to 85 degC (-40 to 185 degF) |
| Relative Humidity | 5 to 95% noncondensing |
| Vibration | 2 g @ 10 to 500 Hz |
| Operating Shock | 30 g |
| Nonoperating Shock | 50 g |
| ESD Immunity | 6 kV contact discharges, 8 kV air discharges |
| Radiated RF Immunity | 10V/m (80 to 2000 MHz), 1V/m (2.0 to 2.7 GHz) |
| EFT/B Immunity | ±4 kV at 5 kHz on communications ports |
| Surge Transient Immunity | ±2 kV line earth (CM) on communications ports |
| Conducted RF Immunity | 10V rms with 1 kHz sine-wave 80% AM (150 kHz to 80 MHz) |
| Isolation Voltage | 30V continuous, Basic Insulation Type, RS232 to system |
| Replacement Battery | 1756-BA1 |
| Enclosure Type Rating | None (open style) |
| North American Temp Code | T4A |
| IEC Temp Code | T4 |
| Weight | Approx. 0.35 kg (12.5 oz) |
| Connector Pin | Function |
|---|---|
| Pin 1 | DCD (Data Carrier Detect) |
| Pin 2 | RXD (Receive Data) |
| Pin 3 | TXD (Transmit Data) |
| Pin 4 | DTR (Data Terminal Ready) |
| Pin 5 | GND (Ground) |
| Pin 6 | DSR (Data Set Ready) |
| Pin 7 | RTS (Request to Send) |
| Pin 8 | CTS (Clear to Send) |
| Pin 9 | N/C (Not Connected) |
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Returns & Warranty



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Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
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| Color pattern |
Black
|
| Country of origin |
United States
|
| Power source |
AC-powered
|