Allen-Bradley 1756-IF6CIS/A Analog Input Module
$123.00
$320.00
Description
Allen-Bradley 1756-IF6CIS/A Analog Input Module
Configured for direct current loop acquisition from passive field transmitters in the ControlLogix platform, the Allen-Bradley 1756-IF6CIS/A (1756-IF6CIS Analog Input Module) provides direct physical execution of 0–20 mA signal sourcing and measurement across isolated input channels.
Suffix Breakdown & Model Matrix
No validated suffix segmentation data is defined beyond the base catalog structure.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-IF6CIS/A |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.79 lbs |
| Dimensions | 1.3 in x 6.0 in x 5.3 in |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 5.1 W max |
| Inputs | 6 isolated current-sourcing channels |
| Signal Range | 0–20 mA |
| Resolution | 16-bit (0.34 µA/bit) |
| Backplane Current | 250 mA at 5 VDC, 275 mA at 24 VDC |
| Conversion Method | Sigma-delta |
| Isolation | Channel-to-channel isolated |
| Data Format | Integer (2’s complement), IEEE 32-bit floating point |
| Terminal Blocks | 1756-TBCH / 1756-TBS6H |
EtherNet/IP Deterministic Backplane Communication Behavior
The module operates within the ControlLogix backplane architecture where cyclic I/O updates are scheduled through deterministic scan windows. Backplane transaction timing is governed by chassis arbitration, with current draw on both 5 VDC and 24 VDC rails influencing slot-level power budgeting. Signal acquisition is synchronized through sigma-delta conversion pipelines, minimizing aliasing in multi-channel sampling sequences under EtherNet/IP system scheduling constraints.
Frequently Asked Questions (FAQ)
Q: Can the 1756-IF6CIS/A channels operate without external loop power supply?
A: Yes. Each channel is current-sourcing and can directly power passive 0–20 mA transmitters without external loop power.
Q: Are all 6 channels electrically independent?
A: Yes. Each channel is individually isolated, reducing inter-channel coupling and allowing mixed transmitter wiring topologies.
Q: What is the impact of backplane current loading on module operation?
A: Backplane consumption at 5 VDC and 24 VDC must remain within chassis limits; excessive loading may delay module readiness during slot initialization.
Field Installation Guidelines
The module must be installed in a ControlLogix chassis slot with power removed. Terminal blocks (1756-TBCH or 1756-TBS6H) shall be fully seated before energizing the backplane. Shielded field wiring is recommended for all current loop channels, with single-point grounding of cable shields at the panel side only. Maintain separation between analog loop wiring and high-frequency switching conductors to reduce induced noise on low-level current signals. Verify channel configuration and scaling parameters prior to enabling loop excitation.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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