ADLINK PCI/LPCI/LPCIe/cPCI-7250 series relay isolation digital IO board

Basic Information

The comprehensive specification book for multi bus relay output+isolated digital input IO cards released by Linghua on November 21, 2018 covers five hardware types: PCI-7250, expansion sub card PCI-7251, low version PCI LPCI-7250, PCIe LPCIe-7250, and CompactPCI cPCI-7252. It provides a unified introduction to hardware channels, relay parameters, electrical isolation, main line specifications, supporting cable terminal boards, software drivers, and development environments.

Full range product positioning

This series is an industrial switch control acquisition board that integrates relay output (driving solenoid valves, indicator lights, contactors)+optocoupler isolated digital input (collecting sensor/switch signals); Supports four types of industrial control buses: standard PCI, low profile PCI, PCI Express, and 3U CompactPCI; PCI-7250 can cascade up to 3 PCI-7251 expansion cards, achieving channel doubling expansion. It is suitable for strong interference industrial scenarios such as production line IO monitoring, equipment interlocking, access control, automation testing, SCADA acquisition, etc.

Differences in bus and channel configuration cores among different models

1. Differences in bus interfaces

Model Bus Specification Board Height IO Interface

PCI-7250 32-bit 5V standard PCI full height 37 pin DB female port

PCI-7251 is only used as an expansion card for PCI-7250, without an independent bus. It has a full height 37 pin DB female port

LPCI-7250 Universal 3.3V/5V Low Profile Half Height Short Card 50 Pin SCSI-II

LPCIe-7250 PCIe x1 1.1 Half height Short Card 50 Pin SCSI-II

CPCI-7252 3U CompactPCI PICMG2.1 Rack Insert Card 50 Pin SCSI-II

2. Relay output channel configuration

PCI-7250/PCI-7251: 8-way relay (CHO~3 SPDT single pole double throw Form C; CH4-7 SPST Single Knife Single Throw Normally Open Form A

LPCI-7250/LPCIe-7250/cPCI-7252: All 8 channels are SPDT single pole double throw Form C

3. Isolate the digital input DI channel

Single main card (7250/LPCIe7250/LPCI7250): 8-channel isolated DI

CPCI-7252: Native 16 way isolated DI

Cascade expansion scheme (1 7250+N 7251):

+1 piece of 7251:16DI, 16 way relay

+2 pieces of 7251:24DI, 24 channel relays

+3 pieces of 7251:32DI, 32 way relay

4. General hardware characteristics

Each relay is equipped with an onboard LED, which lights up and turns off when turned on or off, and supports relay read back status;

DI all have non-polar optocoupler isolation, and onboard RC low-pass filtering is optional to suppress industrial peak interference;

Non latch electromagnetic relay with drive circuit;

Isolation withstand voltage DI side 5000VRMS, relay contact breakdown voltage 1000VRMS.

Detailed electrical specifications

（1） Relay output parameters

Contact load classification

PCI-7250/7251/cPCI-7252：AC120V 0.5A / DC24V 1A

LPCI/LPCIe-7250: DC30V 2A (with stronger load capacity)

Action/release time both 8ms, contact resistance ≤ 100m Ω

Mechanical lifespan:

Standard model: 24V 1A>500000 times; 120V 0.5A>200000 cycles

Short PCI/PCIe version: 30V 2A>100000 cycles; 30V 1A>500000 times

（2） Isolation digital input DI

Maximum input voltage 24V, compatible with no polarity;

High and low level threshold:

PCI/LPCI/LPCIe/7251: High 5-24V/Low 0-1.5V, input resistance 2.2k Ω

CPCI-7252: High 3~24V/Low 0~1V, Input Resistance 1.2k Ω

The optocoupler isolation voltage is 5000VRMS, and it has strong resistance to common mode interference.

（3） Power consumption and size

Power consumption (+5V/3.3V/12V)

PCI-7250: Typical 125mA; PCI-7251: Typical 140mA

LPCI-7250：200mA； LPCIe-7250：3.3V 280mA +12V 180mA

Physical dimensions (excluding connectors)

PCI-7250：162×107mm；PCI-7251：141×102mm

LPCI：120×65mm；LPCIe：120×69mm；cPCI：160×100mm

（4） Environmental parameters

Working temperature: 0-60 ℃; Storage -20~80 ℃; Humidity of 5%~95% without condensation.

Supporting cables and terminal boards

PCI-7250/7251 (37DB interface)

ACLD-9137-01: Universal 37 Pin Terminal Board

DIN-37D-01: DIN rail mounted terminal board

ACL-10137-1MM: 1m 37 pin male to male connector wire

2. LPCI/LPCIe/cPCI (50SCSI interface)

DIN-50S-01: DIN Rail Terminal Board

ACL-10250-1M: 1m 50 pin SCSI cable

Operating System, Drivers, and Development Support

1. Support system

Windows 7/Vista/XP/2000/2003 Server、Linux

2. Driver library

Windows：PCIS-DASK； Linux：PCIS-DASK/X

Third party adaptation: DAQPilot (LabVIEW), DAQ-MTTLB (MATLAB)

3. Development languages and tools

Programming languages: VB/VC/C++/VB. NET/VC. NET/Delphi/BCB

Supporting upper computer tools: DAQBench, AD Loger (IO record monitoring)

Order Model List

PCI-7250: 8-way relay+8-way isolated DI standard PCI main card

PCI-7251: 8-way relay+8-way isolated DI expansion daughter card (only compatible with 7250)

LPCI-7250: 8-way SPDT relay+8DI semi high low PCI

LPCIe-7250:8 SPDT relays+8DI PCIe x1 short card

CPCI-7252: 8-way SPDT relay+16DI 3U CompactPCI module