BASE MODEL CODE

2604
2604f
2704
2704f

1/4th DIN Base Code
1/4th DIN Base with Profibus
1/4th DIN Base Code
1/4th DIN Base with Profibus

SUPPLY VOLTAGE

VH
VL

85 - 264 Vac
20 - 29 Vac/dc

PID CONTROL LOOPS

1
2
3

One PID Control Loop
Two PID Control Loops
Three PID Control Loops

RAMP/SOAK PROGRAMS
*Profiles below required 
to use ramp/soak programs

X
2
5
A

No Program
Twenty Setpoint Programs
50 Setpoint Programs (2604) / 60 Programs (2704)
Asynchronous Programs

RAMP/SOAK PROFILES
*It is recommended that
the number of profiles and
loops match

X
1
2
3

No Profile
One Profile
Two Profiles
Three Profiles

SPECIALIST APPLICATIONS

XX
ZC
V1
V3

Standard
Zirconia Function Block
Vacuum Function Block (1 gauge)
Vaccum Function Block (3 gauge)

I/O SLOT 1, 3, 4, 5, 6

XX
R4
R2
RR
T2
TT
D4
D6
TL
TK
TP
VU
MS
G3
G5
DO
PV
DP
AM
LO
HR
TD
PH
PL

None Fitted
Change Over Relay
2 Pin Relay
Dual Relay
Triac
Dual Triac
DC Control
DC Retransmission
Triple Logic Input
Triple Contact Input
Triple Logic Output
Potentiometer Input
24Vdc Transmitter PSU
5Vdc Transducer PSU
10Vdc Transducer PSU
Dual DC Output
Precision Input (Slot 3 and 6 only)
Dual DC input (Slot 3 and 6 only)
Analog Input
Isolated Single Logic
Hi Res DC Retransmission/24V PSU
TDS conductivity input
4W PRT INPUT (100R) (Slot 4 or 6 only)
4W PRT INPUT (25.5R) (Slot 4 or 6 only)

MEMORY MODULE

XX

Not Fitted

H COMMS SLOT

XX
A2
Y2
F2
PB
AE
YE
FE
DN
ET

None Fitted
EIA-232 Modbus Communications
2 Wire EIA-485 Modbus Communications
4 Wire EIA-485 Modbus Communications
Profibus Communications requires 2604f or 2704f
RS232 EI-Bisync Communications
2 wire RS485 Bisync Communications
4 wire RS485 Bisync Communications
Devicenet Communications
10 Ethernet modbus TCPIP (2704 only)

J COMMS SLOT

XX
A2
Y2
F2
M1
M2
M3

None Fitted
EIA-232 Modbus Communications
2 Wire EIA-485 Modbus Communications
4 Wire EIA-485 Modbus Communications
RS232 Modbus Master Communications
2 wire RS485 master Modbus Master Communications
4 wire RS485 master Modbus Master Communications

MANUAL

XXX

Manual available online at www.eurotherm.com

TOOLKIT FUNCTIONS
*Function block
programming access

XX
U1
U2

None
Function Block Toolkit Level 1
Function Block Toolkit Level 2