hotset hotcontrol C248 User manual

Operating Instructions
hotcontrol C248
hotcontrol C296
Single Loop Temperature Controller
Rev. 1.00.08
05/2017
Translation of original
operating instructions

Subject to technical changes
Rev. 1.01.08
Quick start-up
The temperature controller is ready for use. One control zone for one heater and one thermocouple for measure-
ment of the actual value is set up for operation. The start-up of the control zone can be done in a few steps. (*) see
chapter ÓDisplay Loc)
C248 C296
Step 1: Electrical connection
ÚConnect the thermocouple between terminal 10 and
11.
ÚA Solid State Relay (SSR) is used as a power con-
trol-ler. Notice the heat output at switching to select
the correct SSR.
To activate the Solid State Relay connect it to ter-mi-
nal 5(+) and 6(-) of the controller.
ÚConnect the heater with power supply and Solid
State Relay. Use ultra rapid micro-fuse or ultra ra-pid
automatic circuit breaker for fuse protection of the
heating circuit.
ÚConnect the power supply of the controller by ter-mi-
nal 1 and 2 (e.g. 230 VAC).
Notice necessarily the specification of the
power supply of the controller (85...250
VAC or 24 V)! Provide fuse protection.
Step 1: Electrical connection
ÚConnect the thermocouple between terminal 10 and
11.
ÚA Solid State Relay (SSR) is used as a power control--
ler. Notice the heat output at switching to select the
correct SSR.
To activate the Solid State Relay connect it to termi--
nal 17(+) and 24(-) of the controller.
For the power supply of the control output
there must be an additional connection be-
t-ween terminal 1 and 16.
ÚConnect the heater with power supply and Solid State
Relay. Use ultra rapid micro-fuse or ultra rapid auto--
matic circuit breaker for fuse protection of the heating
circuit.
ÚConnect the power supply of the controller by terminal
13 and 14 (e.g. 230 VAC)
Notice necessarily the specification of the
power supply of the controller (85...250 VAC
or 24 V)! Provide fuse protection.
Step 2: Adjust sensor type *)
ÚPress button frepeatedly until SEn is shown in
the display.
ÚChoose sensor type with the buttons sor d.
ÚConfirm sensor type with fand return to actual/set
point value display with a.
Step 2: Adjust sensor type *)
ÚPress button frepeatedly until SEn is shown in the
display.
ÚChoose sensor type with the buttons sor d.
ÚConfirm sensor type with fand return to actual/set
point value display with a.
Step 3: Adjust set point *)
ÚPress button arepeatedly until SP is shown in the
display.
ÚPress fand change set point with sand d.
ÚConfirm set point entry with button fand return
with sor dto actual/set point value display.
Step 3: Adjust set point *)
ÚPress button arepeatedly until SP is shown in the
display.
ÚPress fand change set point with sand d.
ÚConfirm set point entry with button fand return with
sor dto actual/set point value display.
1
2
3
4
5
6
7
8
9
10
11
12
13 14
15 16
DOUT
1
N
L
SSR
Temperature
Sensor
Heating
Unit
Fuse,
ultra-rapid
Delay-action Fuse
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 26
27 28
DOUT
1
N
L
SSR Heating
Unit
Temperature
Sensor
Fuse,
ultra-rapid
Delay-action
Fuse

2
Rev. 1.01.08
Subject to technical changes
1 Introduction 4
2 Warranty Conditions 4
3 Installation and safety references 5
4 Installation and Start-up 6
Scope of supply 6
Equipment implementation/Ordering designations 6
Type plate 6
Type designation 7
Mounting and Housing 8
Exchange of Controller 10
Electrical Connection and Base Configuration 10
Connection overview 10
Standard Equipment 11
Power supply 11
Sensor-/measurement inputs 11
Digital outputs 12
Digital inputs 12
Heating Current Monitoring 13
Options 13
Serial Interface RS485 (2-wire) (Option A) 13
Serial Interface RS485 (4-wire) (Option A and B) 14
CAN-Bus (Option B) 14
Analog Outputs (Option A and B) 14
Digital in-/outputs (Option A and B) 15
5 Display and Operation 17
Front view 17
Display Loc 17
Display of Examples of Operation 18
Display of Buttons 18
Display of LED 18
Steps of Operation in Flow-Chart 18
Operation Levels 19
Direct data entry of set point and degree of operation 20
Information Level 20
User Level 22
System Level 22
Two Methods of Data Entry at User and System Level 23
Unblocking of Parameters at User Level 23
Additional Operating Functions 24
Enter Code Number 24
Software Version / Period of Operation 25
Activate Input block on User -/System Level 25
Messages & Displays 26
Status Messages 26
6 Configuration / Setting 28
Main functions 28
Control parameter 30
Group functions 32
Definition of Temperature Limit Values 32
Configuration of Base functions 32

Hotset GmbH3
Operating instructions hotcontrol C248&C296
Rev. 1.01.08
Subject to technical changes
Display 33
Configuration of Hardware 33
Configuration of Alarm Flags 37
Definition of Timers 38
Configuration of Operation 39
Configuration of Data Interface 40
Basic settings for Special Applications 40
Application Hot Runner Control 40
Application Extrusion 41
Application Hot Air 41
Alarm Hysteresis Function 41
7 Appendix 42
Parameters/factory delivery status 42
Firmware update 45
Version History 48

4Chapter 1
Introduction
Subject to technical changes
Rev. 1.01.08
1 Introduction
The compact controller models C248 and C296 are one zone temperature controllers (dimensions 48x48mm and
48x96mm) with adaptive parameter adjustment. They are applicable for all purpose applications in extremely fast
to extremely slow zones.
The controllers are available in different specifications. This has to be considered at installation and start-up. For
details please refer to chapter ÓEquipment implementation/Ordering designations as well as ÓConfiguration / Set-
ting.
These operating instructions assist in case of first installation and start-up of the controller as well as in case of
changes and adjustment of an existing control system. Status and error messages are described and remedies
are recommended for elimination of faults.
Protocol specifications of the serial interface and CAN-Bus are not integral part of the operating instructions. The
specifications are available on request.
Symbols and explanation
2 Warranty Conditions
This product is subject to the legal warranty time periods for faults or deficiencies in manufacture.
Content of Warranty
If a malfunction relatively occurs through the manufacture,Hotset GmbHrepairs or replaces the nonconforming
product,according to their own discretion.
The following repairs do not fall under the warranty and are liable to costs:
ÚMalfunctions after the legal notice periods have expired.
ÚMalfunctions caused through operating error of the user (if the device is not operated as described in the man-
ual).
ÚMalfunctions caused through other devices.
ÚChanges or damage to the device which do not originate from the manufacturer.
If you wish to use services within the framework of this guarantee,please refer to Hotset GmbH.
Caution In case of non-compliance with or inaccurate compliance there can result damage to the
device or injuries to persons.
Note Attention is drawn to a special feature.
Example Function is explained by an example.
After June 2014 the design of the Info button / Escape button was changed (before June 2014 an „i“
was shown in a circle).

Hotset GmbH5
Operating instructions hotcontrol C248&C296
Subject to technical changes
Rev. 1.01.08
3 Installation and safety references
Before installation,handling or operation of the device,please read through this operating instructions
completely and carefully.
This controller fulfils the European Directives of security and EMC. It is the responsibility of the operator
to observe the directives at installation of the device.
CE marking
The device complies with the European Directives for electromagnetic compatibility (complies with EN 61326-1)
and low voltages (complies with EN 61010-1).
Service and repair
This device is maintenance free.
If the controller should indicate a fault,please contact Hotset GmbH. Customer repairs are not permissible.
Cleaning
Employ no water or cleaning agents based on water for the cleaning of the device stick-on labels. You can clean
the surface of the devices with a mild soap solution.
Storage
If you should not put the device into operation immediately after unpacking,protect it against moisture and coarse
dirt.
Personnel
The installation of the device may by carried out by qualified personnel only.
Wiring
The wiring system must be implemented correctly according to the specifications in this operating manual. All
feeds and connecting terminals must be dimensioned for the corresponding amperage. Furthermore,all connec-
tions are to be carried out according to the valid VDE Specification and/or the respective national specifications.
Ensure in particular that the AC power supply is not connected with the logic output or the low-voltage in-
put.
Overload protection
For the power supply of the controller and the controller outputs use a fuse protection or a circuit breaker. That
protects the printed circuit board against overload.
Maximum Voltage for Devices with Power Supply of 85...250VAC
For controllers with a power supply of 85...250VAC the maximum applied voltage on the terminals has to be less
than 250 VAC.
DO NOT connect the controller to three phase systems or grounded midpoints. In case of an error the voltage of
the power supply can exceed 250 VAC. Under these circumstances the device is not reliable.
Voltage transients on power supply terminals and between power supply and ground should not exceed 2.5 kV.
For transients expect to exceed 2.5 kV,the power supply voltage should be limited to 2.5 kV by an over voltage
protection.
Environment
Conducting contamination must not reach the proximity of the device connecting terminals in the control cabinet.
In order to achieve suitable ambient air conditions,install an air filter in the air inlet of the control cabinet. If the
controller should be in a condensing environment (low temperatures),install a thermostat-controlled heating unit
in the control cabinet.

6Chapter 4
Installation and Start-up
Subject to technical changes
Rev. 1.01.08
4 Installation and Start-up
4.1 Scope of supply
4.2 Equipment implementation/Ordering designations
When ordering the controller it is important to specify what options are required (refer to ). The exact specification
can be read on the type plate on the cardboard box,the controller housing and the printed circuit board.
4.2.1 Type plate
The following information can be taken from the type plate:
The controller is packed in a robust cardboard box.
Check the packaging and then the temperature controller for identifiable
damage incurred during transit. If damage is identified,then please get
in touch with the transportation company.
In case of damage DO NOT put the controller into operation.
Two securing brackets (see figure) and the operating instructions are in-
cluded in the box.
Type plate on cardboard box Type plate on controller housing Type plate on printed circuit board
1ÓType designation
2Revision identification of the printed circuit boards
3Revision identification of the controller software
4Order number
5Serial number

Hotset GmbH7
Operating instructions hotcontrol C248&C296
Subject to technical changes
Rev. 1.01.08
4.2.2 Type designation
The type designation specifies the controller model and consists of the following options.
* RS485 4-wire only possible for option A = RS485T and option B = RS485R.
Controller Type C248 C296
Input A TCPT Thermocouple/Pt100 TCPT Thermocouple/Pt100
Input B --U0/2...10VDC
Input C --I0/4...20mA
Digital output 1 TS Optical coupler TS Optical coupler
Digital output 2 TS
R
Optical coupler
Relay
TS
R
Optical coupler
Relay
Digital output 3 --TS
R
Optical coupler
Relay
Digital output 4 --TS
R
Optical coupler
Relay
Option A -
RS 485
U
I
DIO
RS485 T
Not existing
Serial interface (2-wire)
Analog output 0/2...10VDC
Analog output 0/4...20mA
Digital inputs/outputs
Serial interface (4-wire)*
-
RS 485
U
I
DIO
RS485 T
Not existing
Serial interface (2-wire)
Analog output 0/2...10VDC
Analog output 0/4...20mA
Digital inputs/outputs
Serial interface (4-wire)*
Option B -
CAN
U
I
DIO
RS 485 R
Not existing
CAN interface
Analog output 0/2...10VDC
Analog output 0/4...20mA
Digital inputs/outputs
Serial interface (4-wire)*
-
CAN
U
I
DIO
RS 485 R
Not existing
CAN interface
Analog output 0/2...10VDC
Analog output 0/4...20mA
Digital inputs/outputs
Serial interface (4-wire)*
Voltage 230 VAC
24 V
85...250 VAC
24 VAC/DC
230 VAC
24 V
85...250 VAC
24 VAC/DC

8Chapter 4
Installation and Start-up
Subject to technical changes
Rev. 1.01.08
4.3 Mounting and Housing
The control panel cut out has to be prepared according to the following sketch:
When fitting more than one controller in a control panel the correct spacing of the controllers is necessary. A spac-
ing of 10mm in horizontal,and 38mm in vertical direction is recommended.
C248 C296
45 mm
+0,5/-0,0
45 mm
+0,5/-0,0
55mm
83mm
92mm
+0,5/ -0,0
45 mm
+0,5/-0,0
55mm
130mm

Hotset GmbH9
Operating instructions hotcontrol C248&C296
Subject to technical changes
Rev. 1.01.08
The controllers C248 and C296 are equipped with a straightforward mounting system. The housing can be mount-
ed / removed without any tools.
To mount the controller,remove the securing brackets.
Press the securing brackets at the end (1),move it backward (2) out of
the guides.
Pass the controller into the front side of the control panel cut out or re--
move it from the front side.
Refit the securing brackets into the guides again and push it forward.

10 Chapter 4
Installation and Start-up
Subject to technical changes
Rev. 1.01.08
4.4 Exchange of Controller
For an exchange of a controller the housing need not to be removed.
4.5 Electrical Connection and Base Configuration
The wiring system is implemented on the screwed terminals on the rear side with the appropriate cable lugs. Ca-
bles with a cross section of 0.5 to 1.5mm2can be employed.
The start-up of the controller includes the electrical installation as well as the correct configuration. Succeeding
the terminal allocation and instructions on the configuration are given in detail.
4.5.1 Connection overview
The terminal overview is glued on one side of the controller next to the type plate. All feasible connections are
drawn in. Only controller configured variants can be used.
Press the lock at the lower end of the front side and remove the controller from
the housing (see figure).
Only controllers of the same type should be exchanged. Notice to take over the setting of the controller.
The controller may be installed and put into operation by specialist personnel only.
Before switch-on of the control zones it is to be ensured that the controller is configured for the appli-
cation. An incorrect configuration can lead to damage to the control section or to injuries to persons.
C248 C296
With power supply
85...250 VAC:
With power supply 24 V: With power supply
85...250 VAC:
With power supply 24 V:
1
2
3
4
5
6
7
8
9
10
11
12
13 14
15 16
N
L
0V
+12VDC
DOUT
1
DOUT
2
DIN
GND
STI I
RTS
DIN1+/DOUT1-
RS485 TX-
AOUT1-
RS485 TX- (4-wire)
DIN1-/DOUT1+
RS485 TX+
AOUT1+
RS485 TX+ (4-wire)
DIN2+/DOUT2-
CAN-L
AOUT2-
RS485 RX- (4-wire)
DIN2-/DOUT2+
CAN-H
AOUT2+
RS485 RX+ (4-wire)
+/~
-/~
1
2
3
4
5
6
7
8
9
10
11
12
13 14
15 16
0V
+12VDC
DOUT
1
DOUT
2
DIN
GND
STI I
RTS
24V
DIN1+/DOUT1-
RS485 TX-
AOUT1-
RS485 TX- (4-wire)
DIN1-/DOUT1+
RS485 TX+
AOUT1+
RS485 TX+ (4-wire)
DIN2+/DOUT2-
CAN-L
AOUT2-
RS485 RX- (4-wire)
DIN2-/DOUT2+
CAN-H
AOUT2+
RS485 RX+ (4-wire)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 26
27 28
DIN1-/DOUT1+
RS485 TX+
AOUT1+
RS485 TX+ (4-wire)
DIN1+/DOUT1-
RS485 TX-
AOUT1-
RS485 TX- (4-wire)
DIN2-/DOUT2+
CAN-H
AOUT2+
RS485 RX+ (4-wire)
DIN2+/DOUT2-
CAN-L
AOUT2-
RS485 RX- (4-wire)
N
L
R
TS
R
TS
R
TS
0V
DOUT
1
DOUT
2
DOUT
3
DOUT
4
+12VDC
DIN1
DIN2
0V
STI
I
I0V
0/4...20mA
0/2...10 V
A
B
C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 26
27 28
R
TS
R
TS
R
TS
0V
DOUT
1
DOUT
2
DOUT
3
DOUT
4
+12VDC
DIN1
DIN2
0V
STI
I
I0V
0/4...20mA
0/2...10 V
A
B
C
+/~
-/~
24V
DIN1-/DOUT1+
RS485 TX+
AOUT1+
RS485 TX+ (4-wire)
DIN1+/DOUT1-
RS485 TX-
AOUT1-
RS485 TX- (4-wire)
DIN2-/DOUT2+
CAN-H
AOUT2+
RS485 RX+ (4-wire)
DIN2+/DOUT2-
CAN-L
AOUT2-
RS485 RX- (4-wire)

Hotset GmbH11
Operating instructions hotcontrol C248&C296
Subject to technical changes
Rev. 1.01.08
4.5.2 Standard Equipment
4.5.2.1 Power supply
Fuse protection of the controller always externally.
4.5.2.2 Sensor-/measurement inputs
Compared to C248 with one measuring input,C296 has three measuring inputs. It can be selected which
of these three measuring inputs or which combination of these is used as actual value.
Furthermore the presetting of the set point for C296 can be done by measuring input additional to entry
by keypad or data interface.
Configuration
Controller Type C248 C248 C296 C296
Power supply 230 VAC 24 V 230 VAC 24 V
Range 85...250 VAC 18...24 VAC or
18...36 VDC
85...250 VAC 18...24 VAC or
18...36 VDC
Power consumption 6.5W 6.5W 6.5W 6.5W
Fuse 200mA time lag 800mA time lag 200mA time lag 800mA time lag
C248 C296
Define measuring input A ÚPage35: [P072]SEn - Sensor Type of Measuring Input A
ÚPage37: [P075]oFF.A - Offset of Measuring Input A
Define measuring input B and C
(only C296)
ÚPage37: [P078]Aib.L - Lower Display Limit of Measuring Input B
ÚPage37: [P079]Aib.H - Upper Display Limit of Measuring Input B
ÚPage37: [P080]AiC.L - Lower Display Limit of Measuring Input C
ÚPage37: [P081]AiC.H - Upper Display Limit of Measuring Input C
Define function for measuring inputs
(only C296)
ÚPage35: [P073]SEn.C - Measuring Input for Control
ÚPage37: [P074]Sen.S - Measuring Input for Presetting of Set
Point
Define input range for set point ÚPage33: [P051]SP.Lo - Lower Set Point Limit
ÚPage33: [P052]SP.Hi - Upper Set Point Limit
1
2
-/~
+/~
13
14 -/~
+/~
Thermocouple
Pt100 3-wire
AIN A+
AIN A -
GND
Pt100 2-wire
11
10
12
0/4...20mA
0/2...10VDC
7
8
9
10
11
12
AIN B
AIN C
Thermocouple
Pt100 3-wire
AIN A+
AIN A-
GND
Pt100 2-wire

12 Chapter 4
Installation and Start-up
Subject to technical changes
Rev. 1.01.08
4.5.2.3 Digital outputs
The controller outputs are according to the type designation.
Configuration
4.5.2.4 Digital inputs
As power supply either the controller internal voltage or an external d.c. voltage (24 VDC) can be used.
Configuration
C248 C296
Optical coupler outputs Relay outputs Optical coupler outputs Relay outputs
The power supply of DOUT1 is controller internally al--
ready wired.
As power supply for the outputs of the optical couplers
either the controller internal voltage or an external d.c.
voltage (24 VDC) can be used.
Which output on digital outputs? ÚPage33: [P058]dO.1 - Mode of Operation of Digital Output 1 to
ÚPage34: [P061]dO.4 - Mode of Operation of Digital Output 4
Is a relay connected to the control output
heating or cooling?
ÚPage33: [P049]rEL.H - Relay Output Heating
ÚPage33: [P050]rEL.C - Relay Output Cooling
Is control output used for output of alarm? ÚPage37: [P082]A1.d1 - Alarm Flag 1, Definition 1 to
Page38: [P089]A4.d2 - Alarm Flag 4, Definition 2
Additional setting if output is used for output
of temperature limit alarms
Define alarm limits
ÚPage28: [P007]Li.1 - Temperature Limit 1 to
Page28: [P010]Li.4 - Temperature Limit 4
Define mode of operation of alarm limits
ÚPage32: [P041]Li.1d - Definition of Temperature Limit 1 to
Page32: [P044]Li.4d - Definition of Temperature Limit 4Page32:
[P044]Li.4d - Definition of Temperature Limit 4
C248 C296
Define mode of operation of digital inputs. ÚPage34: [P062]dIn.1 - Mode of Operation of Digital Input 1
ÚPage34: [P063]dIn.2 - Mode of Operation of Digital Input 2
Is digital input used to activate a set point? Define set point
ÚPage28: [P011]SP.2 - Set Point 2 to Page29: [P013]SP.4 - Set
Point 4
5
3
4
7
6
6
/0V
ext
/0V
ext
/+U
ext
3
4
DOUT2
DOUT1
DOUT2-
20
21
22
23
16
17
18
19
1
1
1
1
24
24
24
24
/0Vext
/0Vext
/0Vext
/0Vext
/+Uext
/+Uext
/+Uext
/+Uext
20
21
22
23
18
19
DOUT1+
DOUT2+
DOUT3+
DOUT4+
DOUT1-
DOUT2-
DOUT3-
DOUT4-

Hotset GmbH13
Operating instructions hotcontrol C248&C296
Subject to technical changes
Rev. 1.01.08
4.5.2.5 Heating Current Monitoring
Do only use current transformers available in the accessories by Hotset GmbH.
Configuration
4.5.3 Options
In addition to the standard equipment the controller can be equipped with two options (Option A and B).
4.5.3.1 Serial Interface RS485 (2-wire) (Option A)
The RS485 connection admits to communicate with 32 controllers by PC over a great distance. A shielded wire
has to be used.
Configuration
Setting if digital input is used to start a timer Define duration of timer
ÚPage29: [P017]t1 - Process Timer 1 to
Page30: [P020]t4 - Process Timer 4
Define mode of operation of timer
ÚPage38: [P090]t1.d1 - Mode of Operation of Timer 1, Definition 1
to
Page39: [P097]t4.d2 - Mode of Operation of Timer 4, Definition 2
Define mode of operation of timer in case of disturbance
ÚPage39: [P098]t.rES - Mode of Operation of Timer after Soft-Re-
set
C248 C296
Define measuring method. ÚPage33: [P053]Cur.d - Current Supervision Function
Define upper limit of measurement range. ÚPage33: [P054]Cur.E - Final Value of Measurement Range of
Current Supervision
Define heating current and tolerance ÚSet point of current either
directly entered: Page28: [P004]Cur.S - Set Point of Heater Cur-
rent or
by automatic current transfer Page20: Information Level
ÚPage28: [P005]Cur.t - Tolerance Band of Heater Current
C248 C296
Define option ÚPage34: [P064]OPt.A - Definition of Option A define as rS
Define communication protocol ÚPage40: [P102]S.Pro - Protocol of Serial Interface
Define setting of interface ÚPage40: [P101]S.Adr - Address of serial interface
ÚPage40: [P103]S.bd - Baud Rate of Serial Interface
ÚPage40: [P104]S.Sto - Stop Bits of Serial Interface
ÚPage40: [P105]S.PAr - Parity of Serial Interface
Additional setting if communication protocol
is in mode MODBUS
ÚPage40: [P109]m.Adr - MODBUS address
25
26
TXTX

14 Chapter 4
Installation and Start-up
Subject to technical changes
Rev. 1.01.08
4.5.3.2 Serial Interface RS485 (4-wire) (Option A and B)
RS485 4-wire only possible for option A = RS485T and option B = RS485R.
Configuration
4.5.3.3 CAN-Bus (Option B)
Up to 127 controllers can be connected by CAN-Bus. Beside the communication with a superior control/visualiza--
tion system the remote control function is feasible. For more detailed information please refer to ÓConfiguration
of Data Interface.
Configuration
4.5.3.4 Analog Outputs (Option A and B)
Both options of the controller can be of the analog output type.
Configuration
C248 C296
Option A Option B Option A Option B
Define option ÚPage34: [P064]OPt.A - Definition of Option A define as rS
ÚPage35: [P065]OPt.b - Definition of Option B define as rS
Define communication protocol ÚPage40: [P102]S.Pro - Protocol of Serial Interface
Define setting of interface ÚPage40: [P101]S.Adr - Address of serial interface
ÚPage40: [P103]S.bd - Baud Rate of Serial Interface
ÚPage40: [P104]S.Sto - Stop Bits of Serial Interface
ÚPage40: [P105]S.PAr - Parity of Serial Interface
Additional setting if communication protocol
is in mode MODBUS
ÚPage40: [P109]m.Adr - MODBUS address
C248 C296
Define option ÚPage35: [P065]OPt.b - Definition of Option B define as CAn
Define setting of interface ÚPage40: [P106]C.bAS - CAN base address
ÚPage40: [P107]C.bd - CAN baud rate
ÚPage40: [P108]C.OP - CAN Auto Operational Mode
C248 C296
Define option ÚPage34: [P064]OPt.A - Definition of Option A and
Page35: [P065]OPt.b - Definition of Option B
define as AO or AO.O
RX
1615
RX
25
26
TXTX
2728
RXRX
1615
CAN-L CAN-H
2728
CAN-H CAN-L
13
14
1615
25
26
2728

Hotset GmbH15
Operating instructions hotcontrol C248&C296
Subject to technical changes
Rev. 1.01.08
4.5.3.5 Digital in-/outputs (Option A and B)
Configuration
Option digital output dO is defined:
Option digital input dI is defined:
Stipulate function of the analog outputs. ÚPage35: [P070]AO.A - Mode of Operation of Analog Output Op-
tion A and
Page35: [P071]AO.b - Mode of Operation of Analog Output Op-
tion B
C248 C296
Digital outputs Digital outputs
Digital inputs Digital inputs
Define option ÚPage34: [P064]OPt.A - Definition of Option A and
Page35: [P065]OPt.b - Definition of Option B
define as dI or dO
Define mode of operation of digital output. ÚPage35: [P066]dO.A - Mode of Operation of Digital Output Option
Aand
Page35: [P067]dO.b - Mode of Operation of Digital Output Option
B
Is control output used for output of heating
or cooling?
ÚPage33: [P049]rEL.H - Relay Output Heating
ÚPage33: [P050]rEL.C - Relay Output Cooling
Is control output used for output of alarm? ÚPage37: [P082]A1.d1 - Alarm Flag 1, Definition 1 to
Page38: [P089]A4.d2 - Alarm Flag 4, Definition 2
Additional setting if output is used for output
of temperature limit alarms
Define alarm limits
ÚPage28: [P007]Li.1 - Temperature Limit 1 to
Page28: [P010]Li.4 - Temperature Limit 4
Define mode of operation of alarm limits
ÚPage32: [P041]Li.1d - Definition of Temperature Limit 1 to
Page32: [P044]Li.4d - Definition of Temperature Limit 4Page32:
[P044]Li.4d - Definition of Temperature Limit 4
Define mode of operation of digital input ÚPage35: [P068]dIn.A - Mode of Operation of Digital Input Option
Aand
Page35: [P069]dIn.b - Mode of Operation of Digital Input Option B
Is digital input used to activate a set point? Define set point
ÚPage28: [P011]SP.2 - Set Point 2 to Page29: [P013]SP.4 - Set
Point 4
13/15
14/16
+Uext
or
0Vext
or
67
/0Vint /+Uint
25/27
26/28
0Vext
or
4/0Vint
+Uext
or
1/+Uint
13/15
14/16
0Vext
or
6/0Vint
+Uext
or
7/+Uint
25/27
26/28
+Uext
or
0Vext
or
41
/0Vint /+Uint

16 Chapter 4
Installation and Start-up
Subject to technical changes
Rev. 1.01.08
Setting if digital input is used to start a timer Define duration of timer
ÚPage29: [P017]t1 - Process Timer 1 to
Page30: [P020]t4 - Process Timer 4
Define mode of operation of timer
ÚPage38: [P090]t1.d1 - Mode of Operation of Timer 1, Definition 1
to
Page39: [P097]t4.d2 - Mode of Operation of Timer 4, Definition 2
Define mode of operation of timer in case of disturbance
ÚPage39: [P098]t.rES - Mode of Operation of Timer after Soft-Re-
set

Hotset GmbH17
Operating instructions hotcontrol C248&296
Subject to technical changes
Rev. 1.01.08
5 Display and Operation
5.1 Front view
5.1.1 Display Loc
Is Loc displayed in the actual value display; an input blocking is active.
C248 C296
Before July
2014
Blue front foil Blue front foil
LED displays 1
2
Actual value / Parameter value
Set point / Parameter name
Actual value / Parameter value
Set point / Parameter name
Buttons
3
4
5
6
Info button / Escape button
Decrease button
Increase button
Parameter button / Edit Enter button
Info button / Escape button
Decrease button
Increase button
Parameter button / Edit Enter button
LEDs
A
B
C
D
E
F
G
H
Output heating
Output cooling / alarm output 3 *)
Digital input activated
Temperature unit °F
Communication RS485/CAN-Bus
-
-
-
Digital input 1 activated
Digital output 2 activated
Temperature unit °F
Output heating
Output cooling / alarm output 3 *)
Alarm 1
Alarm 2
Communication RS485/CAN-Bus
*) see Ó[P087]A3.d2 - Alarm Flag 3,Definition 2 (page 38)
See setting of parameter Ó[P100]iLoc - Entry Lock on Info Level (page 40) and chapter ÓTwo Meth-
ods of Data Entry at User and System Level (page 23).
See setting of parameter Ó[P110]ULoc - Entry Lock on User/System level (page 40) and chapter
ÓActivate Input block on User -/System Level (page 25).
3456
A B C DE
1
2
A B C
1
2
DE F G H
5
63
4

18 Chapter 5
Display and Operation
Subject to technical changes
Rev. 1.01.08
5.2 Display of Examples of Operation
Display of Buttons
To illustrate the operation the symbols have the following meaning:
Display of LED
Steps of Operation in Flow-Chart
All steps of operation are explained by flow-charts. In the flow-charts the display as well as the buttons are shown
in combination.
Please follow the arrows in the flow-chart to comprehend the steps of operation.
aPress button
aKeep the button pressed
dfShortcut: Keep button dpressed and press button fadditionally
df Shortcut: First keep button dpressed,then keep button fadditionally pressed
Press button sor button d.
The display of actual value / set point is in gray color for a better identification. All other
LED displays have a black background.
Display,when set point or one parameter value is flashing.
200
200
200
SP.
off
manU