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Available on request

Honeywell – VLCA-1688 Alerton BACnet Advanced Controller

MPN: VLCA-1688 · Brand: Honeywell

Price on request

Discontinued by Honeywell — we can still source the original VLCA-1688 (new, used or refurbished, subject to availability). Request a quote below.

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12-month warranty (new) · 3-month (used/refurbished)

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	Honeywell Building Management Systems (BMS)
Lifecycle	Discontinued
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

Can I still buy the VLCA-1688 now that it is discontinued?

Yes. Honeywell has discontinued the VLCA-1688, but sourcing discontinued parts is what PartnerPLC specialises in — new old stock, used and refurbished units. Request a quote and we'll confirm availability, condition and lead time.

When can VLCA-1688 be shipped?

VLCA-1688 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up VLCA-1688 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for VLCA-1688 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for VLCA-1688, subject to availability and destination.

The Alerton® BACtalk® VLCA-1688 is a BACnet advanced application controller (B-AAC) with a real-time clock, high resolution 12-bit A/D; D/A converter and a 32-bit processor. The VLCA-1688 includes on-board Hand-Off-Auto (HOA) switches, Ethernet connectivity, and complex math functions. It also leverages DDC Function blocks that calculate additional DDC analog functions.

As a B-AAC controller, the VLCA-1688 integrates seamlessly with your BACnet system. The VLCA-1688 supports 10Base-T and 100Base-Tx on BACnet/Ethernet or BACnet/IP. It communicates at up to 115.2 Kbps on a BACnet MS/TP LAN or can operate as a stand-alone controller using its own real-time clock.

There is memory allocated to supporting BACnet objects, including a minimum of 3 BACnet schedule objects: Standard, Holiday and Event; 50 trendlogs at 60-second intervals; and 25 alarms. Other BACnet features include change of value (COV) support and writeable object names.

The VLCA-1688 offers many control logic functions and user adjustable DDC loop execution speed, and can execute more complex calculations to meet the needs of increasingly complex sequence of operations in mechanical systems.

Features & Benefits:

Capable 16 universal inputs, eight binary outputs and eight analog outputs

Interoperable 10Base-T/100Base-Tx BACnet/ Ethernet or BACnet/IP LAN or BACnet MS/TP LAN at up to 115.2 Kbps

Flexible HOA switches and potentiometers provide ability to perform manual overrides of binary and analog outputs

Powerful Complex DDC control logic math and analog functions monitored by software

Fast User-selectable internal logic loop of 50 mS or 100 mS

Reliable Extensive on-board filtering, with all program and configuration data backed up in nonvolatile flash memory

Honeywell Alerton VLCA-1688 — VLCA-1688 is a BACnet advanced application controller (B-AAC) with a real-time clock, high resolution 12-bit A/D; D/A converter and a 32-bit processor. Discontinued by Honeywell — no longer in the current range. PartnerPLC sources new, surplus and discontinued Honeywell parts — request a quote for price, condition and lead time.