This is one member of the 2600 series of smart I/O modules. It controls up to eight RH1B-U mechanical relays.  Each relay can switch single-phase power through normally open or normally closed contacts.

The 2650’s microcontroller provides I/O services to a remote client such as model 2601.  It connects via a category-3 cable that supplies isolated serial communication and microcontroller power. Interlock connectors are used to supply relay coil power.

Status indicators
The 2650’s microcontroller can monitor and report the state of the relay coil power. Each relay has an LED that tells when the coil driver is energized. The RESET LED flashes briefly after a software reset.  The XMT, RCV and LINK indicate communication activity. 

The HRTBT, heartbeat LED flashes at two second intervals to indicate the the 2650 is functioning properly.

Interlocks
Up to five independent interlock circuits and/or emergency stop circuits can be threaded through the 2650 relay and 2610 digital I/O modules.  Each relay can be jumper programmed to open when an interlock voltage is removed.

I/O Modules
A wide range of I/O module types are available.  Each I/O module type has a specialized function such as analog I/O, thermocouples,  relays, digital I/O, etc.  A low-cost category-5 patch cable connects each I/O module to its Communication Module. Any combination of I/O modules may be connected to a Communication Module.

All I/O modules have on-board DC/DC converters to power module circuitry. This feature helps to prevent ground loops and associated common mode voltage problems when the I/O modules are distributed over long distances.  In addition, the inter-module communication circuits are optically isolated so as to eliminate communication ground loops.

Model 2601	Communication module
Model 2608-0	16 analog and TC inputs (16 bit)
Model 2608-4	16 analog and TC inputs (16 bit), 4 analog outputs (16 bit)
Model 2608-8	16 analog and TC inputs (16 bit), 8 analog outputs (16 bit)
Model 2610	48 digital I/O, 5VDC to 24VDCModel 2612
Model 2612	Strain Gauge via Ethernet
Model 2620	4 encoder/counter/frequency interfaces (32 bit)
Model 2650	8 relay outputs, 0V to 240V @ 10A
Model 2652	SSR I/O Module (Supports 8 SSRs)
Model 2653	SSR I/O Module (Supports 16 SSRs)
Model 204	Power supply, 24 VDC @ 5A

 
Design Assistant
Use our design assistant to help you configure a system unique to your specifications and calculate pricing.

Field Wiring
I/O modules employ two-piece mating connectors for quick connections to all field wiring.  External termination boards are not required, as all field wiring connects directly to the I/O modules. This helps to minimize intermediate termination systems and wiring, thereby reducing both material and assembly costs.

Mechanical
Series 2600 modules are supplied as open-frame circuit boards mounted in robust, uniform 100-mm wide DIN rail mountable frames. These are designed to quickly attach to and detach from standard 35-mm-wide DIN rails. Unlike panel mounted products, DIN rails do not require precise mounting hole positions and time-consuming assembly, thus lowering overall installation costs.

Open-frame design has been applied to all modules in the 2600 family.  Field wiring connectors are conveniently located at module edges for easy cable routing into adjacent wiring ducts. This eliminates the expensive module enclosures that are often required by competing products.

Software and Manuals

Full-featured Windows 98/NT/2000/XP and Linux libraries are available below in the software development kit, along with comprehensive sample programs.

A Windows DLL for the 2600 series is provided at no additional cost. It requires the use of a 2601 communication module in addition to the 2650.  The Windows 98/NT/2000/XP DLL is a common interface for the entire 2600 series. The SDK includes sample programs for Visual Basic and C++. The source code for these programs show how to use the DLL.

2600 Hardware Manual	Released 9/16/08
2600 Programming Guide	Released 9/16/08
2600 Software Development Kit	Released 11/18/09

Specifications

Function
Input power	24 VDC, 310 mA with all relays powered
DIN rail size	35 mm wide
Relays included	8
Relay type	RH1B-U
Relay contact rating	7 A, 240 VAC |  7.5 A, 120 VAC  | 7 A, 30 VDC
Relay coil power	24 VDC, 30 mA
Relay crimp pin	AMP 770988-1
Relay interlock	Digi-key 640431-6
Relay mating connector	AMP 770170

Images and Mechanical Drawings

Model 2650 Interlock Example

Model 2650 System via Ethernet

Model 2650 Dimensions

Prices

Model 2600 Series	Industrial I/O via Ethernet		Please use our design assistant
Model 2601	Communication Module	Qty 1: $463	Qty 2-9: $421
Model 2650	Relay Output	Qty 1: $373	Qty 2-9: $339
Model 204	24 V power supply	Qty 1: $122	Qty 2-9: $122
Model 26C3	3 ft category-3 cable	Call for current prices
Model 26C50	50 ft category 5E	Call for current prices
Model 26C100	100 ft category 5E	Call for current prices
Model 2600C1	Power Daisy Chain cable	Qty 1: $14.55	Qty 2-9: $14.55
Model 2601C1	3 ft. Cat 3 or higher patch cable	Qty 1: $10	Qty 2-9: $10
Model 2601C2	6 ft. Null modem cable	Qty 1: $8	Qty 2-9: $8