
The PR 4511 Modbus Communication Enabler is a powerful industrial interface accessory that transforms signal conditioning devices into fully network-capable instruments. The 4511, from PR electronics, is ideal for attaching easily to PR 4000 and PR 9000 series transmitters and converters. Furthermore, the PR 4511 adds Modbus RTU communication over RS-485, thus enabling remote monitoring, data logging, and digital integration across automation systems.
- The PR 4511 detachable display adds Modbus RTU RS-485 serial communications to all current and future PR 4000 and PR 9000 units.
- The 4511 Modbus Communication Enabler converts a wide array of sensors and analog device signals from the PR 4000 series, like unipolar and bipolar mA and voltage signals, potentiometer, Lin. R, RTD, and TC, to a Modbus communication line signal.
- When mounting on a PR 9000 device, any signal coming from or going to I.S. hazardous areas, like AI, AO, DI, and DO signals, can convert to a Modbus network.
- All individual unit operating parameters can easily and quickly configure by using Modbus communication or by using the front display menu.
- The easily readable PR 4511 programming interface can allow users to read the process signal, simulate the output signal, and indicate sensor and internal device errors.
- The 4511 display can easily move from one device to another.
- The individual system PR 4000, PR 9000, and select PR 3000 device configuration of a transmitter can save and download to subsequent transmitters.
PR 4511 Modbus Communication Enabler from PR electronics
With robust 2.5 kVAC galvanic isolation between the communication interface and host unit, the PR 4511 Modbus Communication Enabler provides safe, reliable digital connectivity while retaining original analog process signals. This detachable programming module includes a built-in high-visibility display for local monitoring of process values, simulation of output signals, sensor error indications, and internal diagnostics. Thus the 4511 helps users troubleshoot and configure systems quickly. Ideal for process control, remote assets, and industrial automation networks, the PR 4511 Modbus Communication Enabler supports multidrop Modbus configurations, thus allowing up to 32 units on a single RS-485 line.
- The PR 4511 has full functionality for unit programming, process signal monitoring, and diagnostics handling.
- Multidrop half-duplex connection via shielded RJ45 connector.
- High safe galvanic isolation of 2.5 kVAC between the serial wiring and the connected system PR 4000 and PR 9000 units.
- Modbus parameters such as address, baud rate, stop bit(s), and parity bit configure from the 4511 display, which also stores parameters.
Easy Mounting and Programming
Parameters such as address, baud rate, and parity are user-configurable via the PR 4511 display and store locally for consistent operation. With certification for Zone 2 / Division 2 hazardous areas, the PR 4511 Modbus Communication Enabler enhances connectivity in demanding environments while preserving system integrity. Furthermore, the 4511 boosts automation capabilities, simplifies diagnostics, and bridges analog measurement hardware with modern control networks.
- Mounting in Zone 2 / Div 2.
- All configuration data from PR 4000, PR 9000, and select PR 3000 series devices can transfer to a PC using the PR 4590.
- Programmed parameters can be protected by a user-defined password.
- When mounting on devices that install upside down, a menu item allows the display on the PR 4511 to rotate 180˚ and also allows the up/down buttons to switch function.
- In addition, the PR 4510 features approval for marine applications.

Models of the PR 4511 Modbus Communication Enabler
| Model ID | Configuration |
|---|---|
| PR 4511 | Communication Interface for PR 3114, PR 4000, and PR 9000 Devices; Modbus Functionality. |
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