Ideal For
High stability, precision and functionality 
One, two or three control loops 
PID, valve, ratio, cascade and override control 
Setpoint programming 
   Up to 50 programs and 500 segments
Semiconductors, Autoclaves, Vacuum & Glass Furnaces, Environmental Chambers, Ceramic Kilns, Test chambers, autoclaves, kilns, furnaces, forehearths 
Dual 5 Digit LED Display, plus 2 line 16 character LCD Display

Melt Pressure, Carbon Potential
Environmental chambers 
Analog & Digital Function Blocks, Timers, Totalisers, Real Time Clock, Advanced Alarming, Min/Max/Avg Monitoring

2 Plug-In Serial Communication Slots

6 Plug-In Modular I/O Option Slots
ModBus (RS232, RS485 & RS422) DeviceNet & ProfiBus Communications

MODBUS MASTER COMMUNICATIONS
The 2604 is a 1/4 DIN plug-in high stability temperature and process controller designed to be used in demanding applications. It has a dual five digit display and a two line LCD panel for alarm, status and user defined messages. It employs universal inputs (TC, RTD, DC) with INSTANT ACCURACY™. Direct connection of Zirconia probes is also supported for carbon potential control in atmospheric combustion applications. The advanced control algorithm and gain scheduling gives straight line control, even in difficult non-linear applications and automatic tuning simplifies commissioning.

A setpoint programming option allows storage of up to 50 programs (500 segments, 16 digital events, guaranteed dwell, holdback) and each can profile up to three setpoints. 
Using internal Toolkit blocks, including timers and totalizers, customized user configurations and special machine control applications can be created. Configuration is by the front panel or via iTools. 
 

 The 2604 is available with high speed Modbus® RTU, DeviceNet™ and Profibus®-DP (in the 'f' version) digital communications. The 2604 is available with powerful preprogrammed applications such as melt pressure and carbon potential. 

2000 I/O Expander The 2604 has fixed and modular I/O and can use the 2000 I/O Expander to provide additional input/output connections. The 2000 I/O Expander is a DIN Rail mounted 24Vdc powered digital I/O expansion unit which uses proprietary serial comms to increase up to 20 each the number of digital inputs and outputs to the 2604. 


Series 2000 I/O Expander
Additional Logic Input and Relay outputs.

(2000IO/VL/10LR/XXXX - 10 Logic In & 10 Relay outputs)
(2000IO/VL/10LR/10LR - 20 Logic In & 20 Relay outputs)
Setpoint Program

Synchronous Setpoint Program for profiling and batching

SAMPLE OF ANALOGUE & DIGITAL LOGIC BLOCK FUNCTIONALITY 
AVAILABLE IN 2604 / 2704
(Click on image to enlarge.)
Click on image to enlarge.


AVAILABLE   FUNCTION   BLOCKS
LOGIC
AND
OR
XOR
LATCH
EQUAL
GREATER THAN
LESS THAN
GREATER THAN OR EQUAL
LESS THAN OR EQUAL		 ANALOGUE
ADD
SUBTRACT
DIVIDE
MULTIPLY
ABSOLUTE DIFFERENCE
MAXIMUM SELECT
MINIMUM SELECT
HOT SWAP
POWER
SQUARE ROOT
LOG
LN
EXP
10^
LOGIC SELECT		 OTHER FUNCTIONS
TOTALISERS
TIMERS 
        ONE SHOT, ON DELAY, OFF DELAY
CONSTANT VALUES
REAL TIME CLOCK
ALARM CLOCKS
LINEARISATION
VIRTUAL USER SWITCHES
BCD INPUTS
AVERAGING MONITOR
PATTERN GENERATORS
ANALOGUE SWITCHES
SETPOINT PROFILLING
ALARMS
 
STANDARD I/O
 1 Universal Process & Temperature input
 1 DC Voltage and Current Process Input
 7 Selectable Digital I/O (Logic) 
    (software selectable as Inputs or outputs)
 2 Digital Inputs (Logic)
 1 Voltage Free C/O Relay
OPTIONAL I/O
 5 I/O Module slots
    Plug-in modules available for 
    Analogue or Digital Inputs/Outputs
 2 Serial Comms slots
    ModBus Master & Slave Comms
    Protocol conversion, i.e. Modbus to Profibus


 

5 Plug-In I/O and 2 Plug-In Serial Communication module slots allow for simple I/O and communication modification at any time.

ORDERING CODE and Quotation Request
    2604 ORDERING CODE
Specifications
Control Modes: 
Supply Voltages: 

Operating Ambient: 
Panel Sealing:
Communications:
Inputs:
 

Output Ratings:
 

 PID, On/Off or motorized valve control 
85-264Vac, 15watts maximum 
20-29Vac/dc, 15watts maximum 
0-55°C, 0-90%RH non-condensing 
IP65, plug-in 
Modbus® RTU, DeviceNet™, Profibus® DP, Ei_Bisynch ASCII 
Nine standard thermocouple types. Pt100. 4-20mA linear (1% sense resistor supplied, 0.1% 2.49 ohm resistor available. Order SUB2K/249R.1). 
Custom input available 
Relay: 2A, 264Vac resistive 
Logic: 18Vdc, 20mA 
Triac: 1A 264Vac resistive

FAQ:
     Frequently Asked Questions relating to the 2604