Model 2500 DIN Rail Control System

Modbus, Profibus, compatable

2500 advanced control w/analog and digital I/O

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The Model 2500 is a DIN rail mounted multi-loop controller and data acquisition system that is the latest addition to Eurotherm’s field proven Series 2000 controllers. The 2500 is a high performance multi-loop PID controller with self-tuning, cascade and gain scheduling. Advanced features include mathematical functions and combinational logic. The product line consists of a base (rack), processor, terminal units, plug-in I/O modules and an externally mounted 24 VDC power supply. Three base sizes allow for up to 32 analog and 64 digital inputs and outputs. DIN rail mounting allows the 2500 to be mounted where the control action is required, minimizing the cost of the wiring since only the twisted pair communications cable is taken to the User Interface. The 2500 may also be mounted directly onto the machine, saving the cost of control enclosures. A four slot base is capable of two loops of PID control. Two analog inputs and two analog outputs plus 8 digital I/O takes only 5" x 7" of panel space. The 2500 system is configured using Eurotherm’s iTools software package.

The 2500 can be also be used as remote I/O for the Model 2604 and 2704 controllers. This permits the use of more sensor inputs that can be used in a: min/max/average/switch-over mode in an application.

This product was designed to be used with a display device running a Modbus^TM RTU or Profibus DP master communications interface, such as the Eurotherm T2900, PC based software packages, or a PLC ^TM. Up to 16 bases may be daisy chained together using standard RJ45 cables.

PID Control Capability

The model 2500 uses a new, advanced PID algorithm. Each PID function block consists of two PID functions. This creates a compound loop, which is capable of advanced control techniques such as cascade, ratio and override control as well as single loop control. Override control is two complete PID loops that are connected to a single output. The output of the "loop" is selected from one of these two PID calculations. Override control allows for the implementation of advanced control strategies such as Auto profiling and thermal head control.

When used as a cascade loop, the auto/manual function works on both loops. This allows for bumpless transfer between auto and manual while in cascade mode.

Soft Wiring

The soft wiring concept provides the ability to make a "connection" between a node inside the controller and an I/O signal such as a digital input or an analog output. For example, an analog input signal can be "soft wired" to the maximum power output parameter on a control loop output. This would allow the analog input to set the maximum output that the loop can produce.

Toolkit Function Blocks

Toolkit blocks come in two types, analog and digital. Analog blocks provide mathematical computations such as multiply, divide, high/low signal select, square root, greater than, less than, ln, etc. Digital blocks perform logic functions such as AND, OR, XOR, latch, equal, not equal, etc. Toolkit blocks also provide advanced functionality such as "hot swap" which will switch to a back-up sensor if the primary input signal fails.

For display purposes, the 2500 can use the model 2900, another HMI, a PLC interface or a SCADA system.

Windows Based Configuration Software

The "iTools" Windows based configuration software is used to set up the PID blocks, set up the I/O, configure the Toolkit blocks and make "softwire" connections to the I/O points, the PID blocks or to internal variables.

Related Products

iTools configuration software
Model 2900 operator interface

McGoff-Bethune, Inc.
5970 Unity Drive Suite A
Norcross, GA 30071
770-840-9811 800-303-4705 Fax: 770-840-7514

McGoff-Bethune features Barber-Colman temperature control and Yokogawa process temperature control, thermocouples, and MACO. We offer Barber Colman and Yokogawa temperature control, temperature controller, process control, thermocouple, 560, 570, Versicase, MACO, actuator, SCR, solid state relay, limitrol, blow mold control, carbon potential control, extrusion control, heat treat control, injection mold control, Eurotherm, Honeywell, Yokogawa, Partlow, Chino, ISI, furnace, and kiln control.