ABB CI521-MODTCP is an S500 Modbus TCP communication interface module that combines Ethernet network access with local mixed I/O. ABB documentation identifies four analog inputs, two analog outputs, eight 24 V DC digital inputs and eight 24 V DC digital outputs rated up to 0.5 A. Two RJ45 Ethernet connectors are located on the terminal unit, while rotary switches support IP-address setup. The module is suited to distributed I/O station expansion, panel modernization and exact-model replacement work. Before ordering, compare the complete model, ABB order code, terminal unit, I/O requirements, network plan and existing engineering project.
| Manufacturer | ABB |
|---|---|
| Complete Part Number | CI521-MODTCP |
| Product Type | S500 Modbus TCP communication interface module |
| ABB Order Code | 1SAP222100R0001 |
| Integrated I/O | 4 AI, 2 AO, 8 DI and 8 DO |
| Ethernet Connection | 2 RJ45 connectors on the terminal unit |
| Product Condition | NEW |
| Warranty | With 1 year warranty |
| Shipping | Worldwide shipping options are stated in the written quotation. |
Connect the terminal unit to the planned Modbus TCP network through the RJ45 interfaces.
Coordinate the rotary-switch setting and IP plan with the controller engineering project.
Map the analog and digital channels to the intended field signals and loads.
Verify CI521-MODTCP and order code 1SAP222100R0001 against the original label. Also compare the terminal unit, 24 V DC process supply, Ethernet port arrangement, IP-address plan, analog signal ranges, digital load ratings, attached I/O modules and the controller configuration before installation.
What does CI521-MODTCP connect?
It serves as an S500 communication interface module for a Modbus TCP network and provides integrated mixed I/O.
Which I/O channels are integrated?
ABB lists four analog inputs, two analog outputs, eight 24 V DC digital inputs and eight 24 V DC digital outputs rated up to 0.5 A.
Why is the complete order code important?
The verified code 1SAP222100R0001 identifies the standard CI521-MODTCP and distinguishes it from the XC version.
What should be checked before replacement?
Compare the terminal unit, network addressing, channel configuration, supply arrangement and the existing engineering project.
Can CI521-MODTCP be shipped internationally?
Yes. Available routes, packaging and shipment terms are provided in the written quotation.
Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
Model and suffix verification compares the requested CI521-MODTCP designation with the available product and label details.
Condition confirmation, technical compatibility review, and product and label photo confirmation are coordinated before quotation acceptance.
Protective packaging and required shipping documentation are arranged according to the written quotation and destination information.
Stockoems coordinates model checks, visual documentation, quotation details, packaging planning, shipment paperwork, and after-sales communication for industrial automation procurement. Availability, dispatch timing, carrier service, and documentation scope remain subject to the written quotation.
Stockoems is operated by Apter Power Limited and is an independent reseller of industrial automation products. Manufacturer names and trademarks are used for identification purposes only.
Each entry is an independent product listing and is not presented as a direct replacement. Confirm the manufacturer, complete part number, revision and compatibility before ordering.
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Models were randomly selected from the customer-provided TXT lists. Only exact Stockoems product matches are linked; unlinked entries remain plain text.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
