Rkc X-tio-a User Manual

Module Type Controller SRX

Temperature Control Module [Basic Type]

X-TIO-A

Instruction Manual

IMS01N02-E5

Thank you for purchasing this RKC product. In order to
achieve maximum performance and ensure proper operation
of your new instrument, carefully read all the instructions in
this manual. Please place the manual in a convenient
location for easy reference.

SYMBOLS

WARNING

CAUTION

 To prevent injury to persons, damage to instrument

and equipment, a suitable external protection device
shall be required.

 All wiring must be completed before power is turned

on to prevent electric shock, fire or damage to
instrument and equipment.

 This instrument must be used in accordance with the

specifications to prevent fire or damage to instrument
and equipment.

 This instrument is not intended for use in locations

subject to flammable or explosive gases.

 Do not touch high-voltage connections such as

power supply terminals, etc. to avoid electric shock.

 RKC is not responsible if this instrument is repaired,

modified or disassembled by other than
factory-approved personnel. Malfunction can occur
and warranty is void under these conditions.

 This product is intended for use with industrial machines,

test and measuring equipment. (It is not designed for use
with medical equipment and nuclear energy.)

 This is a Class A instrument. In a domestic environment,

this instrument may cause radio interference, in which case
the user may be required to take additional measures.

 This instrument is protected from electric shock by

reinforced insulation. Provide reinforced insulation between
the wire for the input signal and the wires for instrument
power supply, source of power and loads.

All Rights Reserved, Copyright  2002, RKC INSTRUMENT INC.

: This mark indicates precautions that must be

taken if there is danger of electric shock, fire,
etc., which could result in loss of life or injury.

: This mark indicates that if these precautions

and operating procedures are not taken,
damage to the instrument may result.

: This mark indicates that all precautions should

!

be taken for safe usage.

: This mark indicates important information on

installation, handling and operating procedures.

: This mark indicates supplemental information on

installation, handling and operating procedures.

: This mark indicates where additional

information may be located.

WARNING

!

CAUTION

RKC INSTRUMENT INC.

®

 Be sure to provide an appropriate surge control circuit

respectively for the following:
 If input/output or signal lines within the building are longer

than 30 meters.

 If input/output or s ignal lin es l eave t he build ing, r egar dles s

the length.

 This instrumen t is designed for installation in an enclosed

instrumentation panel. All high-voltage connections such
as power supply terminals must be enclosed in the
instrumentation panel to avoid electric shock by operating
personnel.

 All precautions described in this manual should be taken to

avoid damage to the instrument or equipment.

 All wiring must be in accordance with local codes and

regulations.

 All wiring must be completed before power is turned on to

prevent electric shock, instrument failure, or incorrect action.
The power must be turned off before repairing work for
input break and output failure including replacement of
sensor, contactor or SSR, and all wiring must be
completed before power is turned on again.

 To prevent instrument damage as a result of failure, protect

the power line and the input/output lines from high currents
with a suitable overcurrent
breaking capacity such as fuse, circuit breaker, etc.

 Prevent metal fragments or lead wire scraps from falling

inside instrument case to avoid electric shock, fire or
malfunction.

 T ighten each terminal screw to the specified torque found

in the manual to avoid electric shock, fire or malfunction.

 For proper operation of this instrument, provide adequate

ventilation for heat dispensation.

 Do not connect wires to unused terminals as this will

interfere with proper operation of the instrument.

 Turn off the power supply before cleaning the instrument.
 Do not use a volatile solvent such as paint thinner to clean

the instrument. Deformation or discoloration will occur. Use
a soft, dry cloth to remove stains from the instrument.

 To avoid damage to instrument display, do not rub with an

abrasive material or push front panel with a hard object.

 When high alarm with hold act ion/re-hold action is use d for

Event function, alarm does not turn on while hold action is
in operation. Take measures to prevent overheating which
may occur if the control device fails.

protection device with adequate

NOTICE

 This manual assumes that the reader has a fundamental

knowledge of the principles of electricity, process control,
computer technology and communications.

 The figures, diagrams and numeric values used in this

manual are only for purpose of illustration.

 RKC is not responsible for any damage or injury that is

caused as a result of using this instrument, instrument
failure or indirect damage.

 RKC is not responsible for any damage and/or injury resulting

from the use of instruments made by imitating this instrument.

 Periodic maintenance is required for safe and proper

operation of this instrument. Some components have a
limited service life, or characteristics that change over time.

 Every effort has been made to ensure accuracy of all

information contained herein. RKC makes no warranty
expressed or implied, with respect to the accuracy of the
information. The information in this manual is subject to
change without prior notice.

 No portion of this document may be reprinted, modified,

copied, transmitted, digitized, stored, processed or
retrieved through any mechanical, electronic, optical or
other means without prior written approval from RKC.

1. OUTLINE

A

One temperature control (TIO) module [basic type] enables
temperature control corresponding to two channels.
It has power supply and host communication terminals in
addition to temperature control input and output terminals.
The temperature control (TIO) module [basic type] can be
connected with the temperature control (TIO) module [extension
type], the digital input (DI) module and the digital output (DO)
module.

All data are set by communication. For details, refer to
the Module Type Controller SRX Communication
Instruction Manual (IMS01N01-E).

Host computer

 Accessories

End Plate .................................................................... 2

Joint connector cover ................................................. 2

X-TIO-A Instruction Manual (IMS01N02-E5) ............. 1

3. PARTS DESCRIPTION

Terminal cover

FAIL/RUN
RX/TX
EVENT1
EVENT2
EVENT3
EVENT4

3

2

4

1

5

5 5

0

6

9

7

8

3

2

4

1

5

0

6

9

7

8

Indication lamps

ddress setting

switch

RS-485

Control

output

Control

output

Digital

input

Digital
output

Temperature

control module

[basic type]

X-TIO-A

Digital output

module

X-DO-A

Temperature

control module

[extension type]

Digital input

module

X-DI-A

X-TIO-B

Measured

input

Digital

input

Digital
output

Measured

input

SRX configuration example

2. PRODUCT CHECK

Before using this product, check each of the following:

 Model code
 Check that all of the accessories delivered are complete.
 Check that there are no scratch or breakage in external

appearance (case, front panel, or terminal, etc).

X-TIO-A-   -     /Y

(1) (2) (3) (4) (5) (6) (7) (8)

(1) Type

A: Basic type (20 terminals)

(2) Input channel 1, (3) Input channel 2

K: TC K J: TC J T: TC T S: TC S
R: TC R A: TC PLⅡ N: TC N E: TC E
W: TC W5Re/W26Re B: TC B
D: RTD Pt100 P: RTD JPt100
1: 0 to 10 mV DC 2: 0 to 100 mV DC 3: 0 to 1 V DC
4: 0 to 5 V DC 5: 0 to 10 V DC 6: 1 to 5 V DC
7: 0 to 20 mA DC 8: 4 to 20 mA DC

(4) Control output 1, (5) Control output 2

M: Relay contact output V: Voltage pulse output 0/12 V DC
4: 0 to 5 V DC 5 0 to 10 V DC 6: 1 to 5 V DC
7: 0 to 20 mA DC 8: 4 to 20 mA DC

(6) CT1 input, (7) CT2 input

N: None P: CTL-6-P-N S: CTL-12-S56-10L-N

(8) Version symbol

No code: For Japanese domestic market
/Y: For International market

Heater break alarm (HBA) function cannot be used
when control output is Voltage/Current output.

2

*

Joint connector
(Right-side)

Joint connector

Terminal cover

(Left-side)

[Indication lamps]
 FAIL/RUN

When normally: A green lamp turns on (RUN)
When abnormally: A red lamp turns on (FAIL)

 RX/TX

During data send and receive: A green lamp turns on

 EVENT 1 to 4

Display various states by setting.
During ON state: A green lamp turns on

Display contents
Event 1 state, Event 2 state, Comprehensive event state,
Output state, Control state, Executing segment state,
Time signal state

4. COMMUNICATION SETTING

Set communication setting before mounting and wiring of SRX.

CAUTION

Do not separate the module mainframe from the terminal base
with the power turned on. If so, instrument failure may result.

4.1 Module Address Setting

Set an address of module. For this setting, use a small slotted
screwdriver.

FAIL/RUN
RX/TX
EVENT1
EVENT2
EVENT3
EVENT4

2

1

0

9

2

1

0

9

Address setting switch

3

4

5

5 5

6

7

8

3

4

5

6

7

8

3

High-order digit

2

4

1

5

5 5

setting

0

6

9

7

8

(Set value  10)

3

2

4

1

Low-order digit

5

0

6

setting

9

7

8

(Set value  1)

Setting range: 0 to 99
(Factory set value: 00)

For Modbus, the value obtained by adding “1” to



the set address corresponds to the address used
for the actual program.

 To avoid problems or malfunction, do not duplicate

an address on the same communication line.

IMS01N02-E5

4.2 Protocol Selections and
Communication Speed Setting

Use the DIP switch on the right side of module to select
communication speed, data bit configuration, protocol and termination
resistor of internal data bus. The data changes become valid when
the power is turned on again or when changed to RUN/STOP.

DIP switch

ON

ON

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

Right side view

1 2 Communication speed

OFF OFF 2400 bps

ON OFF 9600 bps

OFF ON 19200 bps

ON ON 38400 bps

Factory set value: 9600 bps

3 4 5 Data bit configuration

OFF OFF OFF Data 7-bit, without parity, Stop 1-bit *
OFF OFF ON Data 7-bit, Even parity, Stop 1-bit *
OFF ON ON Data 7-bit, Odd parity, Stop 1-bit *

ON OFF OFF Data 8-bit, without parity, Stop 1-bit
ON OFF ON Data 8-bit, Even parity, Stop 1-bit
ON ON ON Data 8-bit, Odd parity, Stop 1-bit

* When the Modbus communication protocol is selected, this

setting becomes invalid.

Factory set value: Data 8-bit, without parity

6 Protocol selection

OFF RKC communication

ON Modbus

Factory set value: RKC communication

8 Internal data bus termination resistor setting

OFF Termination resistor OFF

ON Termination resistor ON

Factory set value: Termination resistor ON

 Switch No. 7 must be always OFF. Do not set to ON.
 When two or more modules are connected on the

same communication line, the DIP switch settings
(switch 1 to 6) of all modules must be the same. In
addition, always turn on the switch, 8 (with the
internal bus termination resistance connected) in
module of both ends.

 Be changed into communication time setting

mode by using switch No. 4, 5 and 6.

For communication time setting mode, refer to the Module
Type Controller SRX Communication Instruction
Manual (IMS01N01-E).

ON

OFF

5. MOUNTING

To prevent electric shock or instrument failure,
always turn off the power before mounting or
removing the instrument.

5.1 Mounting Cautions

(1) This instrument is intended to be used under the following

environmental conditions. (IEC61010-1)
[OVERVOLTAGE CATEGORY II, POLLUTION DEGREE 2]

(2) Use this instrument within the following environment conditions:

 Allowable ambient temperature: 10 to 50 C
 Allowable ambient humidity: 5 to 95 % RH

(Absolute humidity: MAX. W. C 29 g/m

 Installation environment conditions: Indoor use

Altitude up to 2000 m

(3) Avoid the follow ing when selecting the mounting location:

 Rapid changes in ambient temperature, which may cause

condensation.

 Corrosive or inflammable gases.
 Direct vibration or shock to the mainframe.
 Water, oil, chemicals, vapor or steam splashes.
 Excessive dust, salt or iron particles.
 Excessive induction noise, static electricity, magnetic fields or

noise.

 Direct air flow from an air conditioner.
 Exposure to direct sunlight.
 Excessive heat accumulation.

(4) Mount this instrument in the panel considering the following

conditions:

 Provide adequate ventilation space so that heat does not bu ild up.
 Do not mount this instrument directly above equipment that

generates large amount of heat (heaters, transformers,
semi-conductor functional devices, large-wattage resistors.)

 If the ambient temperature rises above 50 C, cool this instrument

with a forced air fan, cooler, etc. Cooled air should not blow
directly on this instrument.

 In order to improve safety and the immunity to withstand noise,

mount this instrument as far away as possible from high
voltage equipment, power lines, and rotating machinery.

High voltage equipment:
Do not mount within the same panel.
Power lines: Separate at least 200 mm.
Rotating machinery: Separate as far as possible.

 Ensure at least 50 mm space on top and bottom of the control

unit for maintenance and environmental reasons.

(5) In case this instrument is connected to a supply by means of a

permanent connection, a switch or circuit-breaker shall be
included in the installation. This shall be in close proximity to
the equipment and within easy reach of the operator. It shall
be marked as the disconnecting device for the equipment.

5.2 Dimensions

(Unit: mm)

125

5

WARNING

!

3

dry air at 101.3 kPa)

110 6.8 40.5

78

IMS01N02-E5

3

5.3 DIN rail Mounting

 Mounting procedures

1. Pull down the mounting bracket at the bottom of the module (A).

Attach the hooks on the top of the module to the DIN rail and
push the lower section into place on the DIN rail (B).

DIN rail

(B) Push

Mounting

bracket

2. Slide the mounting bracket up to secure the module to the

DIN rail.

 End Plate mounting

Hold tight both ends of the modules jointed together with the end
plates and then fix the end plates with screws. Even if only one

temperature control module [basic type] is used, also hold tight

both ends of the module with the end plates.

(A) Pull down

Locked

Temperature control module [basic type]



Removing procedures

Pull down a mounting bracket with a slotted screwdriver (A). Lift
the module from bottom, and take it off (B).

(B) Lift and take off

(A) Pull down

5.4 Panel Mounting

 Mounting procedures

1. Pull down the mounting bracket (A) until locked and that a
mounting hole appears.

2. Prepare one mounting bracket per module (B) sold
separately (KSRX-55) and then insert it in the rear of the
terminal board at top of the module until locked but a
mounting hole does not disappear.

3. Mount each module directly on the panel with screws which
are inserted in the mounting holes of the top and bottom
mounting brackets.

Recommended tightening torque: 0.3 Nm (3 kgfcm)
The customer needs to provide the M3 size screws.

Select the screw length that matches the mounting
panel.

(B) Insert

Mounting bracket
(Sold separately)

(KSRX-55)

Mounting

holes

End Plate

Joint connector cover *

End Plate

* For the conservation of the contact of connector, install a joint

connector cover in module of both ends.

4

(A) Pull down

Mounting dimensions

M3

Module of 40.5 mm wide Module of 30 mm wide

35.25  0.2

30  0.2

(Unit: mm)

0.2



130.5

IMS01N02-E5

5.5 Jointing Each Module

r









Up to 31 SRXs consisting of the each module can be jointed
together. Joint these modules according to the following
procedure.

Jointing procedure



1. Mount the modules on the DIN rail and then joint these
modules together with the joint connector while sliding the
relevant module.

2. Lift each of the joint tabs located at the top and bottom of the
module and then insert it in the slot of the adjacent module to
fix these two modules.

For panel mounting, first joint each module and then
mount it on the panel.

Joint connecto

Joint tab

There is one joint tab at each
of the top and bottom of on
module. Therefore, fix two
adjacent modules with these
two joint tabs.

When viewed
from top

Joint tab
insertion slot

6. WIRING

 For an instrument with 24 V power supply input, supply power

from "SELV" circuit defined as IEC 60950-1.

 A suitable power supply should be considered in the end-use

equipment. The power supply must be in compliance with a
limited-energy circuits (maximum available current of 8 A).

 In the maximum configuration (extension up to 31 modules) the

24 V DC supplied equipment may draw up to 4 A. The power
supply shall be capable of delivering at least 4 A.

 Use the solderless terminal appropriate to the screw size.

- Screw size: M3 x 6

- Recommended tightening torque: 0.4 Nm [4 kgfcm]

- Specified solderless terminals: With isolation

5.9 mm or less

3.2 mm or more

 Make sure that during field wiring parts of conductors cannot

come into contact with adjacent conductive parts.

6.2 Terminal Configuration

Host
communication

RS-485

T/R(A)

T/R(B)

16

SG

17

CT input

CT1

CT2

15

3

Control output 1

Voltage pulse/

Current/

Relay contact

Voltage

OUT1





2

67

16 15 3 2 1

5

17 7 6 5 4

OUT1

NO

2

5

Upper-side terminal

Control output 2

Voltage pulse/

Current/
Voltage

OUT2



1

4

Relay contact

OUT2

NO

1

4

To prevent electric shock or instrument failure, do
not turn on the power until all wiring is completed.
Make sure that the wiring is correct before applying
power to the instrument.

WARNING

!

6.1 Wiring Cautions

 For thermocouple input, use the appropriate compensation wire.
 For RTD input, use low resistance lead wire with no difference

in resistance between the three lead wires.

 To avoid noise induction, keep input signal wire away from

instrument power line, load lines and power lines of other
electric equipment.

 Signal connected to Voltage input and Current input shall be

low voltage defined as “SELV” circuit per IEC 60950-1.

 If there is electrical noise in the vicinity of the instrument that

could affect operation, use a noise filter.

- Shorten the distance between the twisted power supply wire
pitches to achieve the most effective noise reduction.

- Always install the noise filter on a grounded panel. Minimize
the wiring distance between the noise filter output and the
instrument power supply terminals to achieve the most
effective noise reduction.

- Do not connect fuses or switches to the noise filter output
wiring as this will reduce the effectiveness of the noise filter.

Instrument power

Shorten distance between
pitches

 Power supply wiring must be twisted and have a low voltage

drop.

Twist these leadwires

IN

Noise filter

OUT

Minimize
distance

Instrument
power
terminals

Ground

20

FG

Power supply

18

19

DC



24 V

18 11 10 9 8

20 19 14 13 12

Input channel 1

B

10

B



Thermocouple

10



Voltage/

Voltage/
Current

Current

10

14 13

A

RTD1

RTD

TC1

IN1

13



13



Lower-side terminal

Input channel 2

9

12

TC2



Thermocouple

9

12



IN2

Voltage/

Current

Heater break alarm (HBA) function cannot be used
when control output is Voltage/Current output.

 Terminal No. 11 is not used.

Input channel 2 can be used as remote setting input



(only for Voltage/Current input).
In this case, control output 2 and CT input 2 become
unused.

8

9

A

B

12

B

RTD2

RTD

IMS01N02-E5

5

A

7. SPECIFICATIONS

 Inputs

Number of inputs: 2 points (Isolated between each channel)
Input type:

 Thermocouple: K, J, T, S, R, E, B, N (JIS-C1602-1995)
PLII (NBS)
W5Re/W26Re (ASTM-E988-96)
 RTD: Pt100 (JIS-C1604-1997)
JPt100 (JIS-C1604-1989, Pt100 of
JIS-C1604-1981)

 Voltage (low): 0 to 10 mV DC, 0 to 100 mV DC, 0 to 1 V DC
 Voltage (high): 0 to 5 V DC, 0 to 10 V DC, 1 to 5 V DC
 Current: 0 to 20 mA DC, 4 to 20 mA DC

(Input impedance: 250 )
Sampling cycle: 25 ms
PV bias: Input span to Input span
CT input: 2 points

0.0 to 30.0 A (CTL-6P-N) or

0.0 to 100.0 A (CTL-12-S56-10L-N)

 Outputs

Number of outputs: 2 points

Output type:

 Relay contact: 250 V AC, 3 A (Resistive load)

1a contact

Electrical life 300,000 times or more

(Rated load)

 Voltage pulse: 0/12 V DC

(Load resistance 600  or more)

 Current: 0 to 20 mA DC, 4 to 20 mA DC

(Load resistance 600  or less)

 Voltage: 0 to 5 V DC, 0 to 10 V DC, 1 to 5 V DC

(Load resistance 1 k or more)

 Control action

Number of controls: 2 points
Control method: Brilliant PID control

Additional function: Autotuning function

 Events

Number of events: 2 points/channel
Event type: Temperature event:



Heater break alarm (HBA) function

Number of HBA: 2 points
Setting range: 0.0 to 100.0 A (0.0 A: OFF)
Additional function: Number of event delay times:

(Isolated between input and output, and
between output and power supply)

Reverse action or direct action is
selectable

Output limiter function
Output change rate limiter function

Deviation high, Deviation low,
Deviation high/low, Band,
Process high, Process low

1 to 255 times

Control loop break alarm (LBA) function



Number of LBA: 2 points
LBA time: 1 to 7200 seconds
LBA deadband (LBD) setting:

0 to Input span



Program control

Number of patterns: 16 pattern max.
Number of segments: 16 segment/pattern max.

Time signal output: 16 point/pattern

(With pattern link function)



Communications

Communication interfa ce: Based on RS-485, EIA standard
Communication protocol: RKC communication

(ANSI X3.28-1976 subcategories 2.5 and
A4) or Modbus



Others

Power supply voltage: 21.6 to 26.4 V DC

(Including power supply volt age var iation)

Current consumption: 120 mA or less/module

Rating: 24 V DC

Allowable ambient temperature range:

10 to 50 C

Allowable ambient humidity range:

5 to 95 %RH (Non condensing)
Absolute humidity:
MAX.W.C 29 g/m

Installation environment conditions:

Indoor use
Altitude up to 2000 m

Weight: Approx. 220 g

3

dry air at 101.3 kPa

 Modbus is a registered trademark of Schneider Electric.
 Company names and product names used in this manual are the trademarks or registered trademarks

of the respective companies.

HEADQUARTERS: 16-6, KUGAHARA 5-CHOME, OHTA-KU TOKYO 146-8515 JAPAN

RKC INSTRUMENT INC.

®

Website: http://www.rkcinst.com/

IMS01N02-E5

UG. 2013

PHONE: [phone] ([phone]) E-mail: [e-mail]
FAX: [phone] ([phone])

The first edition: MAY 2002 [IMQ00]
The fifth edition: AUG. 2013 [IMQ00]