RKC X-DI-B Instruction Manual

Digital Input Module
X-DI-A/X-DI-B
Instruction Manual
IMS01N04-E1
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 this manual in a convenient location for easy reference.
SYMBOLS
: This mark indicates precautions that must be
WARNING
CAUTION
An external protection device must be installed if
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failure of this instrument could result in damage to the instrument, equipment or injury to personnel.
All wiring must be completed before power is turned
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on to prevent electric shock, fire or damage to instrument and equipment.
This instrument must be used in accordance with the
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specifications to prevent fire or damage to instrument and equipment.
This instrument is not intended for use in locations
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subject to flammable or explosive gases.
Do not touch high-voltage connections such as
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power supply terminals, etc. to avoid electric shock.
RKC is not responsible if this instrument is repaired,
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modified or disassembled by other than factory-approved personnel. Malfunction can occur and warranty is void under these conditions.
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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 adequate measures.
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
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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.
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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 signal lines leave the building,
regardless the length.
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This instrument 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.
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All precautions described in this manual should be taken to avoid damage to the instrument or equipment.
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All wiring must be in accordance with local codes and regulations.
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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.
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To prevent instrument damage or failure, protect the power line and the input/output lines from high currents with a protection device such as fuse, circuit breaker, etc.
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Prevent metal fragments or lead wire scraps from falling inside instrument case to avoid electric shock, fire or malfunction.
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Tighten each terminal screw to the specified torque found in the manual to avoid electric shock, fire or malfunction.
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For proper operation of this instrument, provide adequate ventilation for heat dispensation.
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Do not connect wires to unused terminals as this will interfere with proper operation of the instrument.
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Turn off the power supply before cleaning the instrument.
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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.
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To avoid damage to instrument display, do not rub with an abrasive material or push front panel with a hard object.
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Do not connect modular connectors to telephone line.
NOTICE
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This manual assumes that the reader has a fundamental knowledge of the principles of electricity, process control, computer technology and communications.
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The figures, diagrams and numeric values used in this manual are only for purpose of illustration.
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RKC is not responsible for any damage or injury that is caused as a result of using this instrument, instrument failure or indirect damage.
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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.
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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.
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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.
All Rights Reserved, Copyright  2002, RKC INSTRUMENT INC.
RKC INSTRUMENT INC.
®
1. OUTLINE
A
A
3. PARTS DESCRIPTION
Two types of digital input (DI) module are available: the X-DI-A with 12 input channels (terminal block only) and the X-DI-B with 28 input channels (12-point terminal block/16-point connector). As the
digital input
(DI) module is not provided with terminals for power supply and host communication, it is always used together with the module (temperature control module [basic type] X-TIO-A, etc.) with terminals for power supply and host communication.
Host computer
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
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Contents of digital input signal
The signal of the following can be selected to every temperature control channel.
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Program operation mode selection (6 points)
RESET, RUN, FIX, MAN, STEP, HOLD
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Program pattern selection (5 points)
PSET, SEL1, SEL2, SEL3, SEL4
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Autotuning (AT)/PID control transfer (1 point)
The DI channel is assigned by communication. For details, see the
Communication Instruction Manual (IMS01N01-E
Module Type Controller SRX
.

)
[X-DI-A] [X-DI-B]
Terminal cover
FAIL/RUN
RX/TX
EVENT1
EVENT2
EVENT3
EVTNT4
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
FAIL/RUN
RX/TX
EVENT1
EVENT2
EVENT3
EVTNT4
3
2
4
1
5
5 5
0
6
9
7
8
3
2
4
1
5
0
6
9
7
8
Terminal cover
Terminal cover
Indication lamps
switch
Digital input connecter
Terminal cover
[Indication lamps]
FAIL/RUN
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When normally: A green lamp turns on (RUN) When abnormally: A red lamp turns on (FAIL)
RX/TX
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During data send and receive: A green lamp turns on
EVENT 1 to 4
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During contact closed: A green lamp turns on
Event 1 to 4 is assigned to every DI channel. If several DI channels are assigned to one EVENT lamp, the lamp is lit by the OR operation of inputs from each DI channel.
4. COMMUNICATION SETTING
Set communication setting before mounting and wiring of SRX.
4.1 Module Address Setting
Set an address of module. For this setting, use a small blade screwdriver.
FAIL/RUN
RX/TX
EVENT1 EVENT2
EVENT3 EVTNT4
Address setting switch
3
2
4
1
5
5 5
0
6
9
7
8
3
2
4
1
5
0
6
9
7
8
High-order digit
3
2
4
1
5
5 5
setting
0
6
9
7
8
(Set value × 10)
3
2
4
Low-order digit
1
5
0
6
setting
9
7
8
(Set value × 1)
Setting range: 0 to 99 (Factory set value: 00)
ddress setting
2. PRODUCT CHECK
Check whether the delivered product is as specified by referring to the following model code.
X–DI–

(1)
(1) Type
A: Input 12 points (Only terminal blocks) B: Input 28 points (Terminal block: 12 points, Connector: 16 points)

Accessories
Instruction Manual
(IMS01N04-E1) ........................ 1
For Modbus, the value obtained by adding “1” to
the set address corresponds to the address used for the actual program.
Set the module address such that it is different to
the other addresses on the same line. Otherwise, problems or malfunction may result.
The above figure is X-DI-A module. The figure of X-DI-B module is the same as a X-DI-A module.
2
IMS01N04-E1
4.2 Protocol Selections and
Communication Speed Setting
With the DIP switch which there is on the right side of module, select communication speed, data bit configuration, protocol and termination resistor of internal data bus.
DIP switch
ON
ON
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Right side
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 *
OFF OFF ON Data 7-bit, Even parity *
OFF ON ON Data 7-bit, Odd parity *
ON OFF OFF Data 8-bit, without parity
ON OFF ON Data 8-bit, Even parity
ON ON ON Data 8-bit, Odd parity
When the Modbus communication protocol 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 OFF
Switch No. 7: OFF fixed (Don’t change this one)
When two or more modules are connected on the
same line for their use, set DIP switches corresponding to the switches, 1 to 6 on all of the modules to the same positions. 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, see the
Type Controller SRX Communication Instruction Manual (IMS01N01-E
.
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)
ON
OFF
Module
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. [OVERVOLTAGE CATEGORY II, POLLUTION DEGREE 2]
(2) Avoid the following when selecting the mounting location.
Ambient temperature of less than −10 °C or more than +50 °C.
Ambient humidity of less than 5 % or more than 95 % RH.
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.
(3) Mounting consideration
Install the module 200 mm away from the main power line.
Ensure at least 50 mm space on top and bottom of the control
unit for maintenance and environmental reasons.
5.2 Dimensions
[X-DI-A]
[X-DI-B]
(Unit: mm)
125
5
(Unit: mm)
125
5
WARNING
!
(IEC61010-1)
110 6.8
30
78
124.3
110
78
6.8
30
IMS01N04-E1
3
5.3 DIN rail Mounting
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Mounting procedures
Pull down the mounting bracket at the bottom of the module.
1.
(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
Slide the mounting bracket up to secure the module to the
2.
DIN rail. (Fig. 2)
(A) Pull down
Fig. 1
5.4 Panel Mounting
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Mounting procedures
Pull down the mounting bracket (A) until locked and that a
1.
mounting hole appears. Prepare one mounting bracket per module (B) sold
2.
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. Mount each module directly on the panel with screws which
3.
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
Locked
Fig. 2
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End Plate mounting
Hold tight both ends of the modules jointed together with the end plates attached to the temperature control module [basic type] and then fix the end plates with screws.
End Plate
For the conservation of the contact of connector, install a joint
*
connector cover (be attached to the [basic type]) in module of both ends.
Temperature control module [basic type]
Joint connector cover *
temperature control
End Plate
module
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Removing procedures
Pull down a mounting bracket with a blade screwdriver (A). Lift the module from bottom, and take it off (B).
(A) Pull down
Mounting
30 ± 0.2
(Unit: mm)
dimensions
35.25 ± 0.2
0.2
±
130.5
M3
Module of 40.5 mm wide Module of 30 mm wide
5.5 Jointing Each Module
Up to 31 SRXs consisting of the each modules can be jointed together. Joint these modules according to the following procedure.

Jointing procedure
Mount the modules on the DIN rail and then joint these
1.
modules together with the joint connector while sliding the relevant module. Lift each of the joint tabs located at the top and bottom of the
2.
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.
4
(A) Pull down
(B) Lift and take off
Joint connector
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
IMS01N04-E1
6. WIRING
p
To prevent electric shock or instrument failure, do not turn on the power until all the wiring is com
leted.
CAUTION
To avoid noise induction, keep input signal wire away from instrument power line, load lines and power lines of other electric equipment.
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Terminal configuration
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X-DI-A/X-DI-B (common)
WARNING
!
Digital input CH1 to 6
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Circuit configuration
DI 1
DI 6
COM (−)
DI 25
24 V DC
24 V DC
DI 3
3
COM (−)
7
11
COM (−)
DI 6
6 5 4
7 6 5 4
11 10 9 8
14 13 12
10
14
Digital input CH7 to 12
Use the solderless terminal appropriate to the screw size (M3).
5.9 mm or less
Pin layout of connector
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X-DI-B
1
10
Digital input CH13 to 28
DI 2
2 1
3 2 1
13
DI 11 DI 12
1
2
3
11
4
5
20
6
7
8
9
10
DI 1
DI 4 DI 5
Upper-side terminals
Lower-side terminals
9
8
DI 7 DI 8 DI 9
12
DI 10
Recommended tightening
0.4 N⋅m (4 kgf⋅cm)
torque:
COM (−)
DI 13
DI 14
DI 15
DI 16
COM (−)
DI 17
DI 18
DI 19
DI 20
11
12
13
14
15
16
17
18
19
20
COM (−)
DI 21
DI 22
DI 23
DI 24
COM (−)
DI 25
DI 26
DI 27
DI 28
DI 28
COM (−)
Connection example

Connector terminal CT2-20 (manufactured by Matsushita Electric Works, Ltd)
Connection cable
W-BQ-01
DI 28
DI 27
DI 26
DI 25
COM (−)
DI 24
DI 23
DI 22
DI 21
COM (−)
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
DI 20
DI 19
DI 18
DI 17
COM (−)
DI 16
DI 15
DI 14
DI 13
COM (−)
For the connection cable, use the RKC product (Sold separately). Cable type: W-BQ-01-3000 [Standard cable length: 3 m] (For connector terminal connection)
Recommended connector terminal: Manufactured by Matsushita Electric Works, Ltd CT2-20 (DIN rail mounting type) CT2-M-20 (direct mounting type)
IMS01N04-E1
5
7. FUNCTIONS
Contents of Digital Input Signal

Program operation mode selection
Transfer the program operation mode and an action in
program control.
DI channels can be freely assigned to each mode of the
temperature control (TIO) module shown in the following. (Settable for each temperature control channel.)
RESET: Reset mode RUN: Program control mode FIX: Fixed set point control mode MAN: Manual control mode HOLD: Hold action mode (This action is enabled in program control) STEP: Step action mode (This action is enabled in program control)
Transfer timing
The RESET, RUN, FIX or MAN mode is changed when the contact is closed from the open condition (rising edge). The HOLD state is kept while the contact is being closed. At this time, no HOLD state can be released via communication (the contact status has priority over others). In addition, the HOLD state is released when the contact is opened from the closed condition (falling edge). The STEP action is taken when the contact is closed from the open condition (rising edge).

Program pattern selection
Transfer the run program pattern.
This function is enabled only in Reset mode.
Select pattern at four contacts of SEL1, SEL2, SEL3, and
SEL4, and change pattern with PSET.
A DI channel to select the program pattern is specified to the
temperature control (TIO) module. As the five contacts, PSET, SEL1, SEL2, SEL3 and SEL4 are handled as one set, each of them is assigned to five channels from the DI channel specified. (Settable for each temperature control channel.)
Contact state and Pattern number
Contact
Transfer timing
After selecting the pattern number by four contacts SEL1, SEL2, SEL3 and SEL4, the pattern number is changed when contact PSET is closed from the open condition (rising edge).
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
SEL1
− × − × − × − × − × − × − × − ×
SEL2
− − × × − − × × − − × × − − × ×
SEL3
− − − − × × × × − − − − × × × ×
SEL4
− − − − − − − − × × × × × × × ×
: Contact open
Pattern No.
: Contact closed
×
8. SPECIFICATIONS

Inputs
Input type: Dry contact input
Open state: 500 kΩ or more Close state: 10 Ω or less Contact current: 2.3 mA TYP. Voltage at open: Approx. 24 V DC
Number of inputs: X-DI-A: 12 points (6 points/common):

Digital input function
Settable for each temperature control channel. Program operation mode selection:
Program pattern selection:
Autotuning (AT)/PID control transfer:

LED display
Number of display: 6 points Display contents: Operation: RUN/FAIL lamp

Communications
Communication interface: Based on RS-485, EIA standard Communication protocol: RKC communication
Connection: Internal bus

Others
Power supply voltage: 24 V DC
Current consumption: X-DI-A: 115 mA max./module
Ambient temperature range:
Ambient humidity range: 5 to 95 %RH (Non condensing)
Weight: X-DI-A: Approx. 150 g
Terminal X-DI-B: 28 points Terminal: 12 points (6 points/common) Connector: 16 points (4 points/common)
RESET, RUN, FIX, MAN, HOLD, STEP
PSET, SEL1, SEL2, SEL3, SEL4
AT/PID
Communication: RX/TX lamp Event: EVENT1 to 4 lamps
(ANSI X3.28 subcategory 2.5, A4) or Modbus
(Supplied by temperature control module [basic type])
X-DI-B: 160 mA max./module
10 to +50 °C
Absolute humidity: MAX.W.C 29 g/m
X-DI-B: Approx. 160 g
3
dry air at 101.3 kPa

Autotuning (AT)/PID control transfer
Switch START/STOP of autotuning (AT) function.
Become PID control during autotuning (AT) suspension.
A DI channel to select START/STOP of autotuning (AT)
function is specified to the temperature control (TIO) module. (Settable for each temperature control channel.)
Transfer timing
The autotuning (AT) function starts activating when the contact is closed from the open condition (rising edge). In addition, the autotuning (AT) function stops activating (canceled) when the contact is closed from the open condition (rising edge).
6
Modbus is a registered trademark of Schneider Electric.
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Company names and product names used in this manual are the
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trademarks or registered trademarks of the respective companies.
The first edition: OCT. 2002 [IMQ01]
RKC INSTRUMENT INC.
®
HEADQUARTERS:16-6, KUGAHARA 5-CHOME, OHTA-KU TOKYO 146-8515 JAPAN PHONE: 03-3751-9799 (+81 3 3751 9799) E-mail: info@rkcinst.co.jp FAX: 03-3751-8585 (+81 3 3751 8585)
IMS01N04-E1
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