AS-Interface (AS-i) Communication Modules
AS-Interface (AS-i) communication modules are industrial fieldbus components that connect field sensors and actuators to a higher-level PLC system over a single two-wire line in machine and plant automation. They are used on conveyor lines, packaging machinery and process plants to gather distributed I/O points without complex point-to-point wiring. This category includes Siemens 3RK and 3RX AS-i digital and analog I/O modules, ASIsafe safety modules, S7-1200/ET200SP master cards, power supplies, repeaters, M12 splitters and yellow/black AS-i flat cables. Choose the module according to the number and type of field I/O points (DI/DO or AI/AO), ingress protection rating (in-cabinet IP20 or field-mount IP67) and the host PLC family. While the standard yellow AS-i flat cable carries both data and power, the black AS-i cable is run alongside where 24V DC auxiliary actuator power is required. AS-i modules are designed for the lower sensor-actuator level: they do not replace industrial ethernet switches on high-bandwidth plant backbones.
Products
- Siemens 3RK1901-1KA00 AS-Interface Communication Equipment IP 67 protective cover for empty module M12 inputs — Siemens · SKU: 3RK1901-1KA00 · TRY 161.00 · Made to order
- Siemens 3RX9503-0BA00 AS-Interface Communication Equipment Input: AC 120 /230 V - Output: 8A — Siemens · SKU: 3RX9503-0BA00 · TRY 74,092.00 · Made to order
- Siemens 3RK1405-2BG00-2AA2 AS-Interface Communication Equipment — Siemens · SKU: 3RK1405-2BG00-2AA2 · TRY 22,529.00 · Made to order
- Siemens 3RX9501-0BA00 AS-Interface Communication Equipment Input: AC 120 /230 V - Output: 3A — Siemens · SKU: 3RX9501-0BA00 · TRY 39,090.00 · Made to order
- Siemens 3RK1902-0AR00 AS-Interface Communication Equipment Mounting plate terminator — Siemens · SKU: 3RK1902-0AR00 · TRY 173.00 · Made to order
- Siemens 3RK7137-6SA00-0BC1 AS-Interface Communication Equipment CM AS-I Master ST (Base Unit must be ordered separately)* — Siemens · SKU: 3RK7137-6SA00-0BC1 · TRY 73,453.00 · Made to order
- Siemens 6GK1210-0SA01 AS-Interface Communication Equipment Repeater (Adds an extra segment to the existing AS-I line.) — Siemens · SKU: 6GK1210-0SA01 · TRY 40,110.00 · Made to order
- Siemens 3RK1902-4BA00-5AA0 AS-Interface Communication Equipment M12 straight connector 5-pole screw connection (Max. 0.75 mm2) — Siemens · SKU: 3RK1902-4BA00-5AA0 · TRY 2,193.00 · Made to order
- Siemens 3RK1901-1MX02 AS-Interface Communication Equipment Extension plug (used to extend the As-I line up to 200 m) — Siemens · SKU: 3RK1901-1MX02 · TRY 13,880.00 · Made to order
- Siemens 3RK1205-0BG00-2AA2 AS-Interface Communication Equipment 2 Safe input, 2 Standard output - ASIsafe 17.5F — Siemens · SKU: 3RK1205-0BG00-2AA2 · TRY 17,971.00 · Made to order
- Siemens 3RX9020-0AA00 AS-Interface Communication Equipment AS-I black cable (DC 24 V), 100 m — Siemens · SKU: 3RX9020-0AA00 · TRY 39,878.00 · Made to order
- Siemens 3RK1904-2AB02 AS-Interface Communication Equipment — Siemens · SKU: 3RK1904-2AB02 · TRY 59,915.00 · Made to order
- Siemens 3RK2402-2CG00-2AA2 AS-Interface Communication Equipment 4DI / 4DO Relay Output 3-wire connection - 22.5 — Siemens · SKU: 3RK2402-2CG00-2AA2 · TRY 23,022.00 · Made to order
- Siemens 3RK1901-2NN10 AS-Interface Communication Equipment AS-I cable distribution element — Siemens · SKU: 3RK1901-2NN10 · TRY 3,019.00 · Made to order
- Siemens 3RK1901-2NR21 AS-Interface Communication Equipment AS-I and Uaux / M12 branching element with 1m cable — Siemens · SKU: 3RK1901-2NR21 · TRY 5,839.00 · Made to order
- Siemens 3RX9501-1BA00 AS-Interface Communication Equipment Input: 24V DC - Output: 3A — Siemens · SKU: 3RX9501-1BA00 · TRY 66,206.00 · Made to order
- Siemens 3RK1901-2EA00 AS-Interface Communication Equipment Wall mounting — Siemens · SKU: 3RK1901-2EA00 · TRY 1,296.00 · Made to order
- Siemens 3RK7136-6SC00-0BC1 AS-Interface Communication Equipment F-CM AS-I Safety ST (Base Unit must be ordered separately)** — Siemens · SKU: 3RK7136-6SC00-0BC1 · TRY 53,122.00 · Made to order
- Siemens 3RK1207-3CG00-2AA2 AS-Interface Communication Equipment — Siemens · SKU: 3RK1207-3CG00-2AA2 · TRY 33,599.00 · Made to order
- Siemens 3RX9801-0AA01 AS-Interface Communication Equipment AS-I / M12 branching element (load capacity 2A) — Siemens · SKU: 3RX9801-0AA01 · TRY 1,878.00 · Made to order
- Siemens 3RK2400-2CG00-2AA2 AS-Interface Communication Equipment 4DI / 4DO 2A Solid-State Output 3-wire connection - 22.5 — Siemens · SKU: 3RK2400-2CG00-2AA2 · TRY 21,935.00 · Made to order
- Siemens 3RK1207-0CG00-2AA2 AS-Interface Communication Equipment — Siemens · SKU: 3RK1207-0CG00-2AA2 · TRY 33,599.00 · Made to order
- Siemens 3RK7243-2AA30-0XB0 AS-Interface Communication Equipment CM 1243-2 — Siemens · SKU: 3RK7243-2AA30-0XB0 · TRY 57,842.00 · Made to order
- Siemens 3RX9502-0BA00 AS-Interface Communication Equipment Input: AC 120 /230 V - Output: 5A Input: AC 120 /230 V - Output: 8A — Siemens · SKU: 3RX9502-0BA00 · TRY 50,454.00 · Made to order
- Siemens 3RX9010-0AA00 AS-Interface Communication Equipment AS-I yellow cable , 100 m — Siemens · SKU: 3RX9010-0AA00 · TRY 33,582.00 · Made to order
How to choose AS-Interface (AS-i) Communication Modules
AS-Interface (AS-i) communication modules are industrial fieldbus components that connect field sensors and actuators to a higher-level PLC system over a single two-wire line in machine and plant automation. They are used on conveyor lines, packaging machinery and process plants to gather distributed I/O points without complex point-to-point wiring.
- Separate sensing, motion control, logic processing and operator interface requirements.
- Select signal type, supply voltage, communication protocol and I/O count for the machine network.
- Verify housing size, sensing distance and PNP/NPN output polarity against the PLC input card.
Frequently asked questions
What is AS-Interface (AS-i) Communication Modules and where is it used?
AS-Interface (AS-i) communication modules are industrial fieldbus components that connect field sensors and actuators to a higher-level PLC system over a single two-wire line in machine and plant automation. They are used on conveyor lines, packaging machinery and process plants to gather distributed I/O points without complex point-to-point wiring.
What should I compare when choosing AS-Interface (AS-i) Communication Modules?
Choose the module according to the number and type of field I/O points (DI/DO or AI/AO), ingress protection rating (in-cabinet IP20 or field-mount IP67) and the host PLC family.
Where can I find technical details for AS-Interface (AS-i) Communication Modules products?
AS-i modules are designed for the lower sensor-actuator level: they do not replace industrial ethernet switches on high-bandwidth plant backbones.