Allen-Bradley DTAM PLUS Operator Panel HMI Operator Terminal

Product Details

DTAM PLUS Operator Panel Product Description

The Allen-Bradley 2707-L40P2 DTAM PLUS is a compact, field-proven HMI operator terminal engineered for industrial data communication across DH-485 networks. Designed to interface directly with Allen-Bradley PLC-5 and SLC 500 controllers, the 2707-L40P2 serves as a critical node in the smart factory data chain — bridging field-level device signals with supervisory control layers, enabling real-time monitoring, alarm feedback, and remote diagnostics without the overhead of a full PanelView system.

In modern industrial automation environments, the integrity of the data link between field devices and control systems determines the responsiveness of the entire production line. The 2707-L40P2 DTAM PLUS addresses this requirement by providing a reliable, low-latency DH-485 communication interface that connects operator inputs directly to the controller logic. Whether deployed on a discrete manufacturing line, a process control skid, or a utility monitoring station, this terminal ensures that operator commands and system status data flow without interruption across the network.

The 2707-L40P2 DTAM PLUS occupies a pivotal position in the connected factory data flow. At the field level, sensors and actuators — including proximity switches, temperature transmitters, and pressure transducers — feed analog and digital signals into the Allen-Bradley SLC 500 or PLC-5 controller via remote I/O modules such as the 1746-OB16 digital output module or the 1746-NI4 analog input module. The DTAM PLUS terminal connects to the controller's DH-485 port, allowing operators to read real-time process values, acknowledge alarms, and issue setpoint changes directly from the panel face.

Upstream from the controller, a 1747-KE DH-485 to RS-232 interface module or a 1761-NET-AIC Advanced Interface Converter can bridge the DH-485 segment to a higher-level Ethernet network, enabling SCADA platforms such as FactoryTalk View or Wonderware InTouch to aggregate data from multiple SLC 500 nodes. In this architecture, the 2707-L40P2 acts as the local operator window while the SCADA system provides plant-wide visualization and historical trending.

For facilities integrating variable frequency drives, the PowerFlex 40 or PowerFlex 400 drives can be networked via DeviceNet or RS-485 links back to the SLC 500, with the DTAM PLUS providing local speed reference display and fault acknowledgment at the drive panel. This eliminates the need for dedicated drive HMI panels and consolidates operator interaction through a single, standardized interface.

Edge gateway devices such as the Moxa MGate MB3170 or a Prosoft Technology MVI56-MCM Modbus Communication Module can extend the data reach further, translating DH-485 or DF1 protocol data into Modbus TCP or EtherNet/IP frames for transmission to cloud-based MES or ERP systems. The result is a seamless data pipeline from the 2707-L40P2 terminal at the machine level all the way to enterprise dashboards, supporting production KPI tracking, OEE calculation, and predictive maintenance workflows.

Industrial Ethernet switches such as the Stratix 2000 or Stratix 5700 managed switches provide the network backbone for this multi-layer architecture, ensuring deterministic data delivery between the controller subnet, the SCADA server, and the historian database. The 2707-L40P2 DTAM PLUS, while operating at the DH-485 layer, integrates cleanly into this broader network topology through the appropriate protocol conversion modules, making it a durable and cost-effective operator interface for both legacy and modernized Allen-Bradley control systems.

Many industrial sites operating Allen-Bradley SLC 500 or PLC-5 systems face persistent data visibility challenges: protocol fragmentation between DH-485 segments and Ethernet backbones, data silos where machine-level alarms never reach the SCADA historian, and limited remote diagnostic capability for distributed panel stations. The 2707-L40P2 DTAM PLUS directly addresses the first layer of this problem by providing a standardized, reliable operator interface at the DH-485 network node.

By deploying the DTAM PLUS at each critical control panel, maintenance teams gain immediate local visibility into controller status, fault codes, and process variables without requiring a laptop or programming terminal. Alarm acknowledgment at the panel level reduces response time and creates a local audit trail that can be synchronized with the SCADA alarm management system. For sites pursuing production line transparency, the DTAM PLUS serves as the human touchpoint in a broader data collection strategy that includes remote I/O expansion, protocol gateway integration, and cloud-connected historian platforms.

System expansion is straightforward: the DH-485 network supports up to 32 nodes, allowing additional DTAM PLUS terminals, SLC 500 controllers, or communication modules to be added without rewiring the existing network infrastructure. This scalability makes the 2707-L40P2 a practical long-term investment for facilities planning phased automation upgrades.

Q1: What is the communication latency of the 2707-L40P2 on a DH-485 network?DH-485 is a token-passing network with selectable baud rates from 1.2 kbps to 19.2 kbps. At 19.2 kbps with a small node count, typical message response times are under 50 milliseconds, suitable for operator display and alarm acknowledgment applications. For high-speed closed-loop control, DH-485 is not recommended; EtherNet/IP or ControlNet should be used instead.

Q2: Is the 2707-L40P2 compatible with MicroLogix controllers?Yes. The DTAM PLUS supports DH-485 communication with Allen-Bradley MicroLogix 1000, 1100, 1200, and 1500 series controllers, in addition to SLC 500 and PLC-5 platforms. The terminal uses standard DF1 or DH-485 messaging, which is natively supported across these controller families.

Q3: Can the 2707-L40P2 be integrated into a SCADA or remote monitoring system?The DTAM PLUS itself does not have a direct Ethernet port, but it operates on the same DH-485 network as the SLC 500 controller. By adding a 1747-KE or 1761-NET-AIC interface module to the network, the controller data accessible via the DTAM PLUS can be bridged to an Ethernet-connected SCADA system, enabling remote monitoring, data logging, and alarm management from a central control room or cloud platform.

Q4: What warranty and pre-shipment testing does the 2707-L40P2 carry?Every 2707-L40P2 DTAM PLUS unit supplied by NANKMOS is covered by a 12-month warranty from the date of shipment. Each unit undergoes pre-shipment functional testing to verify DH-485 communication, display operation, keypad response, and power supply integrity before dispatch. In-stock units are available for same-week shipment; lead time and availability can be confirmed via RFQ at [email protected].