| Solid-State Relays
Sockets are provided for 16 SSRs. Each SSR socket may be populated with any supported SSR type, including AC in, AC out, DC in and DC out. SSRs are secured to the module with integral hold-down screws. On-board, finger-safe connectors enable direct connections to field wiring without the need for intermediate terminal blocks. Two connectors are provided for each SSR, one for the line connection and one for the load. This simplifies field wiring and enables load devices to be easily connected and disconnected for quick servicing. Input Debounce
A microcontroller applies a 10 millisecond software debounce filter to all input SSRs. Input debouncing helps to minimize errors resulting from electromechanical switch bounce. Pulse Width Modulation
Each output SSR may be explicitly controlled by the client, or it may operate as a PWM output with rate and duty cycle specified by the client. This feature greatly simplifies the closed-loop control of devices such as electric heaters. Status Indicators
Each SSR circuit includes an LED that lights when the SSR is energized. Other LED status indicators include RST, which flashes briefly in response to a reset, HBT, which flashes at 2Hz to indicate error-free microcontroller operation, and XMT, RCV and LNK, which indicate communication activity. Interlocks
Both modules support up to five independent interlock circuits that supply interruptable voltages through safety contacts (e.g., safety interlocks, emergency stop switches). Each output SSR is shunt-configured to derive its logic power from one of the interlock circuits. An output SSR will unconditionally de-energize when its interlock voltage is interrupted, ensuring fail-safe deactivation when safety conditions require it. Two connectors are provided for the interlock circuits. One of these connects to the interlock voltage sources. The other connector may be used to pass through the interlock voltages to other modules such as 2610 Relay I/O modules or additional 2652/2653 modules. This “daisy-chain” system eliminates the external termination boards that are often required for interlock circuits. 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.
I/O Module Types
| 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 24VDC | | 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 | |
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
The Communication Module implements a high-performance, preemptive multi-tasking operating system and UDP/IP stack in firmware. As a result, it boots up in approximately one second. All of the essential standard network protocols are supported: IP, UDP, ICMP, and ARP. It employs a static IP address that can be programmed by connecting a null-modem cable between a PC and the module’s COM4 serial port. Full-featured Windows 98/NT/2000/XP and Linux libraries are available at Sensoray’s web site, along with comprehensive sample programs. 2600 Hardware >> Released 2/23/06
2600 Programming Guide >> Released 2/23/06
2600 Software Development Kit >> Released 2/23/06
2652 LabView Software >> 3/27/06
LabVIEW Software Interface (click for image)
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