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The Allen Bradley 1734-ARM is an Address Reserve Module designed for use within distributed I/O systems. Unlike standard I/O modules, it does not process input or output signals. Instead, it is used to reserve a logical slot position within a POINT I/O assembly.
This module is particularly useful in systems where future expansion is planned. By reserving space in advance, it allows new modules to be added later without changing the addressing structure or reconfiguring the controller program.
It is commonly used in projects where system downtime must be minimized, or where phased installation is expected. The module ensures that system architecture remains consistent over time.
The POINT I/O system is a modular platform that supports distributed control, allowing users to build flexible and scalable automation systems.
| Parameter | Specification |
|---|---|
| Model | 1734-ARM |
| Module Type | Address Reserve Module |
| Function | Slot reservation (no I/O processing) |
| Channels | None |
| Communication | Passive (no active communication) |
| Supply Voltage | Via backplane |
| Field Power Requirement | None |
| Backplane Current | Minimal (negligible) |
| Power Consumption | Very low |
| Indicators | None |
| Operating Temperature | -20°C to +55°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5–95% non-condensing |
| Mounting | DIN Rail |
| Enclosure | Open-style |
| Dimensions | Approx. 56 × 12 × 75.5 mm |
| Weight (kg) | Approx. 0.02 kg |
The 1734-ARM is designed to maintain system structure by reserving a position within a POINT I/O node.
It allows engineers to predefine system expansion without physically installing all modules at the initial stage.
The module requires no configuration, as it does not process signals or participate in communication.
Its simple design ensures reliability and eliminates the risk of failure related to active electronics.
Because it occupies a slot like a standard module, it maintains consistent addressing and simplifies future upgrades.
The 1734-ARM is used in scenarios where system planning and flexibility are important:
It is especially useful in industries where downtime for system modification must be avoided.
Maintains Address Consistency
Prevents the need to reassign I/O addresses when adding new modules.
Supports Future Expansion
Allows systems to be designed with growth in mind.
No Configuration Required
Simple plug-in module with no setup or programming.
High Reliability
No active electronics means minimal risk of failure.
Compact Design
Fits seamlessly into POINT I/O assemblies without adding complexity.
Cost-Effective Planning Tool
Reduces future engineering effort and system downtime.
| Model | Type | Channels / Ports | Voltage | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1734-ARM | Address Reserve | None | Backplane | 56×12×75.5 | 0.02 |
| 1734-AENT | Ethernet Adapter | 1 Port | 24V DC | 133×56×79.8 | 0.30 |
| 1734-ADN | DeviceNet Adapter | Network Node | 24V DC | 63×107×148 | 0.30 |
| 1734-ACNR | ControlNet Adapter | Network Node | 24V DC | 63×107×148 | 0.33 |
| 1734-IB8 | Digital Input | 8 Inputs | 24V DC | 56×12×75.5 | 0.04 |
| 1734-OB8 | Digital Output | 8 Outputs | 24V DC | 56×12×75.5 | 0.04 |
| Model | Type | Key Function | Voltage | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1769-L33ER | PLC Controller | Compact control processor | 24V DC | 118×87×87 | 0.50 |
| 1756-L81E | PLC Controller | High-performance processor | 24V DC | 175×90×140 | 0.65 |
| 1756-EN2T | Communication | Ethernet communication module | 24V DC | 145×35×140 | 0.30 |
| 1734-AENTR | Adapter | Ethernet I/O adapter | 24V DC | 56×12×75.5 | 0.04 |
| 5069-IB16 | Digital Input | 16-point digital input module | 24V DC | 138×42×95 | 0.25 |