XCL5010

Configured for programmable building automation and distributed HVAC control, the Honeywell XCL5010 (XCL5010 Direct Digital Controller) executes control logic and exchanges data through LONWORKS and C-bus communication networks. The controller supports modular Distributed I/O expansion, energy management functions, alarm and trend processing, and remote communication through a modem or ISDN terminal adapter at up to 38.4 Kbaud.

Hardware Specifications

Parameter	Specification
Model	XCL5010
Brand	Honeywell
Product Series	Excel 500
Product Type	Direct Digital Controller
Weight	1.26 lbs
Supply Voltage	24 VAC
Programming	Freely programmable using Honeywell CARE
Program Storage	Flash EPROM
Network Interface	LONWORKS
Controller Communication	C-bus; supports communication between up to 30 Excel 500 controllers
LONWORKS Network Variables	Up to 512 NVs
Physical Data Points	128 per controller in C-bus configuration
Pseudo Data Points	256 per controller in C-bus configuration
Distributed I/O Expansion	Up to 16 modules per controller in C-bus configuration
Networked I/O Capacity	Typically 190 physical inputs/outputs via network variables in a LONWORKS network
Remote Communication	Modem or ISDN terminal adapter, up to 38.4 Kbaud
Energy Management Functions	Optimum start/stop, night purge, maximum load demand
Mounting	DIN rail
Internal Power Supply	Integrated power supply module

LONWORKS Network Integration and Control Functions

The XCL5010 supports open LONWORKS networks and LONMARK compliance for interoperability with compatible Honeywell and third-party devices. Network integration includes Excel 500, Excel 10, and Excel 50 controllers, together with Distributed I/O modules.

• Network variable management: NVBooster reduces the number of required network variables, while the controller supports up to 512 NVs for LONWORKS integration.
• Binding recovery: Network variable bindings can be restored following a controller reset, reducing the need to repeat binding configuration after controller replacement.
• Distributed I/O integration: Automatic binding between the CPU and Honeywell Distributed I/O modules reduces manual network variable configuration.
• Controller communication: C-bus supports communication between up to 30 Excel 500 controllers.
• Program management: Applications are developed with Honeywell CARE and downloaded to Flash EPROM. Firmware downloading is supported through modem and C-bus communication.
• Monitoring functions: Alarm processing, trend functions, global broadcast hysteresis, and network-wide time synchronization are supported.

Frequently Asked Questions (FAQ)

Q: Which communication interfaces are supported by the XCL5010?

A: The controller supports LONWORKS network integration, C-bus communication, and modem or ISDN terminal adapter connections. The documented modem or ISDN transmission rate is up to 38.4 Kbaud. GSM wireless and dial-up communication through TCP/IP networks are also listed among the Excel 500 communication options.

Q: How many Distributed I/O modules can one XCL5010 controller support?

A: In the C-bus configuration, one Excel 500 controller supports up to 16 Distributed I/O modules, 128 physical data points, and 256 pseudo data points. The separate LONWORKS network configuration can typically control 190 physical inputs/outputs through network variables.

Q: How are control applications loaded into the XCL5010?

A: Applications are programmed using Honeywell CARE and downloaded into Flash EPROM. The Excel 500 system also supports firmware downloading through modem and C-bus communication.

Field Installation Guidelines

• Mounting: Install the controller on a compatible DIN rail inside a control cabinet. Secure the assembly and maintain access to the terminal connections.
• Power supply: Verify the 24 VAC supply against the controller's applicable hardware documentation. The Excel 500 documentation specifies a shared transformer arrangement for the CPU and connected Distributed I/O modules.
• Network wiring: Connect LONWORKS and C-bus wiring according to the applicable interface specifications. Confirm network topology and device compatibility before commissioning.
• Signal segregation: Route low-voltage control wiring separately from power conductors where required by the installation standards. Avoid routing communication cables alongside sources of electrical interference.
• Grounding and shielding: Apply the grounding and cable-shield termination practices specified for the selected communication interface. Do not assume identical shield termination requirements for LONWORKS and C-bus.
• Configuration: Load the correct CARE application and verify data point assignments, network variable bindings, controller addressing, and Distributed I/O communication.
• Commissioning: Confirm power status, controller communication, I/O response, alarm operation, and time synchronization before releasing the system for automatic control.
• Environmental verification: Confirm the permitted operating temperature and cabinet conditions using the applicable Honeywell installation documentation, as these values are not included in the supplied product data.

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