ProfiBus
Gateway Unit
RCM-GW-PR
Operation Manual, Second Edition
CAUTION
Note on Connecting a PC or Teaching Pendant to the Gateway
Unit Grounded via the Positive Terminal of Its 24-V Power Supply
If the positive terminal of the gateway unit’s 24-V power supply is grounded, use a SIO converter as
shown below to connect a teaching pendant or PC to the gateway unit. In this case, do not connect the FG
of the SIO converter.
Teaching pendant
Do not
connect
the FG.
24-V power
supply
PC, etc.
PC software
RS232 connection type
<Model number: RCM-101-MW>
USB connection type
<Model number: RCM-101-USB>
* The cables are supplied with the
PC software.
Controller link cable
Model number: CB-RCB-CTL002
SIO converter (optional)
(with built-in terminal resistor)
Model number: RCB-TU-SIO-A (B)
* One e-CON connector, one junction
and one terminal resistor are supplied
with each controller link cable.
Gateway unit
e-CON connector (3-1473562-4 by AMP)
Junction (5-1473574-4 by AMP)
Terminal resistor
R = 220Ω
If the positive terminal of the gateway unit’s 24-V power supply is grounded, the gateway unit cannot be
connected directly to a teaching pendant or PC.
If a teaching pendant or PC is connected directly to the gateway unit grounded in this cond ition, the
power-supply circuit may be shorted and the PC/teaching pendant may be damaged.
This teaching
pendant cannot be
used this way.
Cannot be connected directly.
CAUTION
Gateway unit
24-V power
supply
PfofiBus Gateway
Table of Contents
1. Overview ................................................................................................................... 1
1.1 ProfiBus Gateway Unit ................................................................................................................ 1
1.2 What Is ProfiBus? .................................................................................................................. ...... 2
1.3 Application Example of Gateway Unit ................................................................. ........................ 3
1.4 Features and Key Functions ....................... ................... ................... .................. ....................... .. 4
1.4.1 Features ............................................ ............... ............... ................... ............... .......... ... 4
1.4.2 Key Functions ......................................... ... .... .... .... .... ....... .... .... .... ... .... ........ ... .... .... .... ... ...... 4
1.5 Description of Model Name ......................................................................................................... 7
1.6 Accessories ..................................... ..................................... .................................. ................... .. 7
2. Specifications and Name of Each Part ...................................................................... 8
2.1 General Specifications ................. ................... ................... ...................... ................... ................. 8
2.2 External Dimensions .................................................................................................................... 9
2.3 Name and Function of Each Part ....... .... .... .... .... ... ........ .... ... .... .... .... ....... .... .... ... .... .... .... ....... .... 10
3. Installation and Noise Elimination Measures ........................................................... 16
3.1 Installation Environment. ........................................................................................................... 16
3.2 Supply Voltage ............................................... .... ... .... .... .... ... ........ .... ... .... .... .... ....... .... .... ........... 16
3.3 Noise Elimination Measures and Grounding ............................................................................. 16
3.4 Installation.................................................................................................................................. 18
4. Wiring ...................................................................................................................... 19
4.1 Overall Configuration .......................................... ................................................................... .... 19
4.2 I/O Signals of Gateway Unit ...................................................................................................... 22
4.3 Design of SIO Communication Network (SIO Communication) ................................................ 25
4.3.1 Wiring ........................................ ........ ....... ........ ....... ............ ....... ........ ....... ........ ........... 25
4.3.2 Axis Number Setting ............................. ........................................................................ 33
4.4 How to Connect the Teaching Tool When the Positive Terminal of the 24-V Power Supply Is
Grounded ................................................................................................................................... 34
5. Address Configuration of Gateway Unit ................................. .. ... .. .. .. .. .................... 35
5.1 Position Number Specification Mode ................................... ..................................................... 35
5.1.1 Overall address configuration ........................... ...................... ................... ................... 36
5.1.2 Gateway Control/Status Si gnals ............................................. ................... ................... 37
5.1.3 Assignment for Each Axis ............................................................................................ 40
5.2 Direct Numerical Specification Mode ........................................................................................ 43
5.2.1 Overall Address Configuration .......... .... ... .... .... .... ... .... .... .... ... .... .... .... .... ... .... .... .... ... .... 44
5.2.2 Gateway Control/Status Si gnals ............................................. ................... ................... 46
5.2.3 Assignment for each axis ............................................................................................. 49
5.3 Command Specification Mode...................................................... .... ... .... .... .... .... ....... .... .... .... ... 53
5.3.1 Overall Address Configuration .......... .... ... .... .... .... ... .... .... .... ... .... .... .... .... ... .... .... .... ... .... 55
5.3.2 Gateway Control/Status Si gnals ............................................. ................... ................... 57
5.3.3 Assignment for Each Axis ............................................................................................ 60
5.3.4 Command Area ............................................................................................................ 65
6 Communication Signal Details ................................................................................ 75
6.1 Overview of Communication Signal Timings ............................................................................. 75
6.2 Communication Signals and Operation Timings ....................................................................... 77
6.3 Basic Operation Timings ................. ....... .... .... ... .... .... .... ....... .... .... .... ... .... ........ ... .... .... .... .... ....... 85
6.4 Command Transmission .................................................................................. ................... ....... 95
PfofiBus Gateway
7. Building Your Network System ................................................................................ 96
7.1 Procedure ........................................ ................................................................... ....................... 96
7.2 Setting the Controller .......................................... ....... .... .... ... .... .... .... ....... .... .... .... ... .... ............... 97
7.3 Setting the Gateway Unit and PLC Master ..................................................................... ........... 99
7.4 PLC Address Assignment ................................................................. ...................... ................. 100
8. Supported S7 Function Blocks/Functions........................... .. .. .. ... .. .. .. .. .. ... .. .. .. .. .. ... 106
8.1 GW_CTL_11 ............................................................................................................................ 107
8.2 RC_NVC_11 ..................................................................................................................... ....... 108
8.3 RC_ESYNC_00 ................................... ........................................................................... ......... 109
8.4 RC_BCMOVP_00 .................................................................................................................... 110
8.5 RC_READ_00 ........................................ ........ ........... ........ ....... ........ ....... ............ ....... ............. 111
8.6 RC_WRITE_00 ................................................................................................................... ..... 112
8.7 RC_PROM_00 ......................................................................................................................... 113
8.8 RC_PMSL_00 .......................................................................................................................... 113
Appendix 1. Sample Programs for S7-300 .............................................. ... .. .. .. .. .. ... 114
Appendix 2. Supply Format and Use Procedure of FB/FCt ..................................... 117
PfofiBus Gateway
1. Overview
1.1 ProfiBus Gateway Unit
The ProfiBus Gateway Unit (hereinafter referred to as “ProfiBus Gateway” or “Gateway Unit”) is used to
connect a ProfiBus communication protocol network on which a host programmable controller (hereinafter
“PLC”) operates, to a SIO communication sub-network (Modbus communication protocol) linking ROBO
Cylinder controllers.
The physical standard to which the SI O com mu nic ation network conforms is RS -48 5, an d the s lav e
addresses on this network are 1 through 16.
All data exchanged between the ProfiBus communication network and the Modbus SIO communication
network are tentatively saved in the internal memory of the Gateway Unit, and then transferred cyclically.
The PLC recognizes the G ateway Unit as a remote I/O device.
The Gateway Unit supports PCON-C/CG/SE, ACON-C/CG/SE, SCON-C and ERC2-NP/PN/SE
controllers.
* “Gateway” is a term used in communication networks, referring to a device that converts data to/from
different media and protocols to enable communication be tween networks.
* ProfiBus protocols include ProfiBus-DP for factory automation (FA) and ProfiBus-PA for process
automation (PA). Of these two protoco ls, this ma nua l covers ProfiBus-DP. Accordingly, “Pro fiB us ”
refers to ProfiBus-DP throughout this manual.
Caution
This manual only describes the controls feasible using the Gateway Unit. In the event of any conflict
between this manual and the operation manual for the controller, the content of this manual will
prevail. Refer to the operation manual for each controller for any function, parameter setting, alarm
detail or any other information not described in this manual.
1
PfofiBus Gateway
1.2 What Is ProfiBus?
(1) FA communication system
In FA communication, each communication specification varies depending on the communicating
equipment, type of information, and purp os e of c omm unication, among others. In general, however,
the FA communication system is divided into the information level, controller level and field level, as
shown below.
level
Information
FA computer
Controller level Field level
Device level
Robot
Remote
I/O
Motor
driver
Installed
instrument
Solenoid
valve
Sensor level
Limit
switch
(2) Information level
Also called “PLC upper network.” The main purpose of this network level is to transmit production
information, etc., to information terminals. Ethernet is the most commonly used communication
method for the information level.
(3) Controller level
Also called “Inter-PLC network.” This network level often handles real-time information of production lines.
(4) Field level
Also called “PLC lower network.” This network level is mainly used to save wirings for systems
controlled by a single controller. In this sense, this network is regarded as a means for “wire-saving
communication.” The field level is largely divided into the device level and the sensor level.
Key open network
2
PfofiBus Gateway
(5) ProfiBus
ProfiBus is an open field network most commonly used in the world today. It was first established
under DIN 19245 (German standard) in Germany in 1989, and standardized under EN 50170
(European standard) in July 1996. In January 2000, ProfiBus became an international standard under
IEC 61158. There are two ProfiBus protocols designed for different purposes: ProfiBus-DP for factory
automation (FA), and ProfiBus-PA for process automation.
This manual covers ProfiBus-DP.
The key features of ProfiBus-DP are as follows:
[1] A field network realizing complete multi-vendor connectivity
[2] Able to send large amounts of data at high speed.
• Up to 244 bytes of data per device
• Maximum baud rate of 12 Mbps
[3] Up to 125 nodes can be connected.
* For details on ProfiBus, refer to the operation manuals for your master unit and PLC.
Along with this manual, also read the operation manual for each controller connected.
This ProfiBus Gateway cannot be used in any way not described as feasible in this manual.
To prevent malfunction, the customer is also advised not to use settings, wirings and other uses other
than those described as feasible in this manual.
1.3 Application Example of Gateway Unit
The network illustrated below gives an application example of the Gateway Unit.
Remote I/O
station
CPU
unit
ProfiBus Gateway
(Remote I/O station)
ProfiBus
unit
(master
station)
Remote I/O
station
SIO communication network (Modbus)
Remote I/O
station
3
PfofiBus Gateway
1.4 Features and Key Functions
1.4.1 Features
The ProfiBus gateway unit lets you select a desired operation mode from three modes including the
position number specification mode, direct numerical specification mode and command specification
mode.
(1) Position number specification mode
In this mode, a desired position number is specified to operate the actuator. Up to 16 axes can be
connected. The position data, speed, acceleration/deceleration, etc., must be input to the position
table beforehand.
Although the input/output of various status signals and completed position number can be read, the
current position cannot be monitored in this mode.
(2) Direct numerical specification mode
In the direct numerical specification mode, the position data, speed, acceleration/deceleration,
positioning band and push-current limiting value are specified directly as numeric al values to operate
the actuator.
Various status signals can be input/output and current position data can be read.
There are five patterns in the numerical specification mode, each accommodating a different number
of connected axes.
[1] Direct numerical specification mode/Up to 4 axes can be connected
[2] Direct numerical specification mode/Up to 6 axes can be connected
[3] Direct numerical specification mode/Up to 8 axes can be connected
[4] Direct numerical specification mode/Up to 10 axes can be connected
[5] Direct numerical specification mode/Up to 16 axes can be connected
(3) Command specification mode
In this mode, the actuator can be operated in one of two operation patterns: “positioner operation” in
which a desired position number is specified to operate the actuator, and “simple direct operation”
where only the position data is specified directly as a numerical value and all other items such as the
speed, acceleration/deceleration, positioning band and push-current limiting value are specified via a
position number. As for the axis configurations, these two operation patterns can be used separately
or in combination. If the two patterns are combined, the axis numbers must be assigned sequentially
from the axes used in positioner operation, followed by the axes used in simple direct operation. You
can select the Large mode (160 input bytes, 160 output bytes), Middle mode (128 input bytes, 128
output bytes) or Small mode (64 input bytes, 64 output bytes) depending on the size of the assigned
areas, and up to 16 axes can be connected.
1.4.2 Key Functions
A comparison table of key functions provided by the gateway unit in the respective modes is given on the
following page.
Use this table as a reference in conjunction with the explanation of each operation mode in Chapter 5.
4
Key function
Operation by position data specification X (P table specification)
Direct specification of speed and
acceleration/deceleration
Direct specification of positioning band X (P table specification)
Push-motion operation { (P table specification)
Operation by position number specification
Position table enabling
Maximum number of storable position
numbers
Reading of completed position number
Selection of controller PIO pattern X X { *2 X
Zone (parameter) { (2) X { *3 X
Position zone (P table) X X { *4 X
Reading of various status signals
Speed change during movement
Operation at different acceleration and
deceleration
Monitoring of current position *5 X
Sending/receiving of
commands/responses
Reading/writing of P table data X X
Reading of current position *6 X X
Reading of alarm code X X
Command
Broadcasting X X
Number of connectable axes 16 4 6 8 10 16 16 16
Maximum specifiable value of position data P table specification 9999.99 mm 9999.99 mm 9999.99 mm
Mode setting SW1 2 0 4 8 13 12 1 5 9
Gateway I/O bytes
Input 48 28 40 52 64 100 160 128 64
Output 48 52 76 100 124 196 160 128 64
Position number
specification mode
X (P table specification)
{
{
64 - 512 512
{
{ { { {
{ { { {
{ { {
X X
Direct numerical specification
mode
{
{
{
{
X
X
X
{
Positioner operation Simple direct operation
{ (P table rewriting)
{ (P table rewriting) X (P table specification)
{ (P table rewriting) X (P table specification)
{ (P table specification) { (P table specification)
Large mode Middle mode Small mode
Command specification mode
{
{
{ {
{
{ (P table specification)
X
{ {
{
{ {
{ {
{
X
X
{
X
X
*1 P table: Position table
*2 PIO patterns 0 to 4 can be selected.
*3 PIO patterns 1 to 3 are not supported.
*4 PIO pattern 3 is not supported.
*5 In the current position monitoring function, the current position data is assigned to a gateway output signal.
Accordingly, the current position can be read directly from the PLC.
*6 Reading the current position means reading the current position data indirectly with the PLC issuing a read command to the gateway.
PROFIBUS Gateway
Command
ifi ti
PfofiBus Gateway
Next, the relationship of the number of positions supported by each controller under each PIO pattern, and
the maximum number of positions that can be stored in the gateway unit, is explained. Take note that the
number of positions may become subject to restrictions.
PIO pattern (Parameter No. 25)
0 1 2 3 4
ERC2
PCON
ACON
SCON
Operation type
Number of positioning
points
Home return signal
Zone signal
Standard
8 3 16 16 - 64
{
{
Solenoid
type
X X X X
P zone signal X X X
Position number
specification mode
Positioner
operation
Simple direct
Command
specification
Gateway control
operation
Operation type
Number of positioning
points
Home return signal
Zone signal
P zone signal
Position number
specification mode
Positioner
operation
Gateway control
Simple direct
Command
specification
operation
8
*1
*1 *3
8 (0)
X
X
- X - - - - 512
Positioning
mode
Teaching
mode
64 64 256 512 7 64
{ { { { { {
{
X X X
{ { {
64 64
*3
64 (0)
*3
64 (1)
- - - - - - 512
Zone
signal
type
{
16
*1
*1 *3
16 (2)
256-point
mode
256
↓
64 *2
*3
256 (2)
Position
zone type
-
X -
{
16
*1
*1 *3
16 (3)
512-point
mode
-
- 64 64
-
Solenoid
mode 1
{ {
X
{ {
512
↓
7 64 64
64 *2
*3
512 (3)
*3
7 (4)
SE
Dedicated
SIO
operation
*3
64 (0)
Dedicated
SIO
operation
*3
64 (0)
{
{
{
Maximum
number of
gateway
positions
512
Maximum
number of
gateway
positions
512
*1 In the operation mode based on position number specification, the number of positions is limited
according to the selected PIO pattern (parameter No. 25). (The gateway can handle more positions.)
*2 Since the gateway can handle 64 positions, the number of controller positions is limited.
*3 In the case of a positioner operation axes operating in the command specification mode, the PIO
pattern selection parameter of the controller must correspond to the I/O pattern set by gateway
control signals PPS0 to PPS2. The numbers of positions shown in parentheses ( ) indicate values set
by PPS0 to PPS2.
6
1.5 Description of Model Name
Base model ProfiBus specification
Gateway Unit
1.6 Accessories
[1] Power-supply input connector plug 1 pc
MC1•5/4-ST-3•5 (Phoenix Contact)
[2] SIO communication connector plug 1 pc
MC1•5/6-ST-3•81 (Phoenix Contact)
PfofiBus Gateway
7
PfofiBus Gateway
2. Specifications and Name of Each Part
2.1 General Specifications
Item Specification
Power supply
Current consumption 300 mA max.
Communication standard Group 2 only server
Communication specification Master-slave connection Bit strobe
Baud rate 9.6 kbps to 12 Mbps (Set automatically)
Communication cable length (*1) 9.6 kbps 1500 m
ProfiBus specifications
Transmission path configuration IAI’s original multi-drop differential communication
Communication method Half-duplex
Synchronization method Asynchronous
Transmission path type EIA RS485, 2-wire type
Baud rate 230.4 kbps
Error control method No parity bit, CRC (*2)
Communication cable length Total cable length: 100 m max.
specifications
Communication cable Double shielded twisted-pair cable
SIO communication
Connected units 16 axes max.
Ambient operating temperature
Ambient operating humidity 85% RH or below (non-condensing)
Operating ambience Free from corrosive or flammable gases, oil mist or pow der dust
Storage temperature
Storage humidity 90% RH or below (non-condensing)
Environment
Vibration durability 4.9 m/s2 (0.5 G)
Protection class IP20
Weight 480 g or below
*1 Refer to the operation manuals for your master unit and PLC in the case of T-branch communication.
*2 CRC: Cyclic Redundancy Check
A data error detection method commonly used in synchronous transmission.
24 VDC ± 10%
Insulated node of network powered operation type
Polling
Cyclic
500 kbps 400 m
1.5 Mbps 200 m
3 Mbps 200 m
12 Mbps 100 m
(Recommended cable:
HK-SB/20276 X L, 2P X AWG22 by Taiyo E lectric Wire & Ca ble)
0 to 40°C
-10 to 65° C
8
2.2 External Dimensions
(Installed dimension)
PfofiBus Gateway
9
2.3 Name and Function of Each Part
[1] Gateway Status LEDs
RUN: Normal
G.ER: Error
C.ER: ProfiBus controller error
T.ER: SIO link error
[2] SIO communication status
LEDs
TxD: Sending data
RxD: Receiving data
[3] Mode setting switch
[4] Port switching input
PORT IN: Port switching input
PORT N: N
[5] Controller communication lines
SDA: Communication line
SDB: Communication line
GND: Ground
FG: Frame ground
[10] Port switch
ON: Port ON
OFF: Port OFF
PfofiBus Gateway
[6] ProfiBus communication connector
[7] Termination switch
[8] Address setting switches
X10 and X1 (decimal, 2 digits)
[9] ProfiBus communication Status LEDs
ON: Online
OFF: Offline
ERR: Error
[11] Teaching pendant/PC connector
[12] Power-supply input connector
10
PfofiBus Gateway
[1] Gateway stat us LEDs
Indicated status Description
RUN Steady green The Gateway CPU is operating.
Unlit CPU operation is stopped. If this LED does not come on after turning on
the power, the Gateway is experiencing a CPU error.
G.ER Steady red The Gateway is experiencing a CPU error or major shutdown failure.
Unlit Normal state.
C.ER Steady red The ProfiBus module is experiencing an error or the Gateway CPU
cannot recognize the ProfiBus connection. (Check the ProfiBus
communication stat us in [9].)
Even if this LED is lit, the teaching pendant or PC software can still be
connected as long as the RUN LED is lit.
Blinking red While the port is ON, this LED blinks at 1-second intervals.
Unlit Normal state.
T.ER Steady red All axes generated a communication error based on SIO communication
between the ProfiBus gateway and controller.
Blinking red At least one axis generated a communication error based on SIO
communication between the ProfiBus gateway and controller. (No
response, overrun, flaming error or CR C
(*)
error)
Unlit Normal state.
* CRC: Cyclic Redundancy Check
A data error detection method commonly used in synchronous transmission.
[2] SIO communication status LEDs
These LEDs are used to check the communication status between the ProfiBus Gateway and the
controller.
Each LED blinks when the host PLC and controller are not communicating via the ProfiBus Gateway,
or when the controller is communicating with the teaching pendant or PC software connected via the
ProfiBus Gateway.
Indicated status Description
TxD Blinking green
Unlit
RxD Blinking green
Unlit
Sending data (ProfiBus Gateway → Controller)
Not sending data (ProfiBus Gateway → Controller)
Receiving data (Controller → ProfiBus Gateway)
Not receiving data (Controller → ProfiBus Gateway)
11
PfofiBus Gateway
[3] Mode setting switch
This switch is used to set the operation mode of the ProfiBus gateway.
Before operating this switch, turn off the ProfiBus gateway power.
If any position between No. 1 and No. 5 is selected, the position table settings of the controller will
become invalid.
SW1 turns ON when tilted
to the right.
{: ON X: OFF
No.
4 3 2 1 Description Output Input
1 X X X X
2 X
{
3
{ {
4
{ {
5
6 X X
7 X X X
8 X
{
9
SW1 I/O bytes
{
X X
X X X
{
X
X X
{
X
{
{
X X
X
{
{
Direct numerical specification mode/Up to 4
axes can be connected
Direct numerical specification mode/Up to 6
axes can be connected
Direct numerical specification mode/Up to 8
axes can be connected
Direct numerical specification mode/Up to 10
axes can be connected
Direct numerical specification mode/Up to 16
axes can be connected
Position-number specification mode,
maximum 16 axes
Command specification mode Large 160 160
Command specification mode Middle 128 128
Command specification mode Small 64 64
52 28
76 40
100 52
124 64
196 100
48 48
[4] External port switching input
The ON/OFF status of the teaching pendant/PC connector port can be switched using external
signals (no-voltage cont act type).
The connector port is enabled when the port switch [10] on the ProfiBus Gateway is OFF. When the
input signal is ON, the port is also ON. (Refer to [10], “Port switch.”)
PORT IN: Port control input
PORT N: Port control input, N side
Use an input current of 7 mA and external si gnals of no-voltage contact type
[5] Controller communication lines
This terminal is used to connect the communication lines to the SIO communication connector.
12
PfofiBus Gateway
[6] ProfiBus communication connector
This connector is used to connect the ProfiBus communication lines.
D-sub, 9-pin connector (female)
ProfiBus communication c onnector
Pin No. Signal name Description
1 NC Not connected
2 NC Not connected
3 B-Line Communication line B (RS485)
4 RTS Request to send
5 GND Signal ground (insulated)
6 +5V +5-V output (insulated)
7 NC Not connected
8 A-Line Communication line A (RS485)
9 NC Not connected
Housing Shield
Cable shield
Connected to the frame.
The mating connector (cable end) is not supplied.
[7] Termination switch
A terminal resistor must be provided at the end of the ProfiBus trunk line to prevent bus reflection.
Set the termination switch to the ON position when the ProfiBus Gateway is the terminal module.
However, the switch should be set to the OFF position if an external termination connector is used.
Set the switch to the OFF position if the Gateway is not the terminal module.
[8] Address setting switches
The two rotary switches are used to set a decimal node address in a range of 1 to 99.
X10: Set the 10’s digit of the two-digit decimal address.
X1: Set the 1’s digit of the two-digit decimal address.
This switch is normally set to 2 for the master unit, and 3 or greater for the slave.
13
PfofiBus Gateway
[9] ProfiBus status LEDs
The three LEDs of (LINE-) ON, LINE-OFF and ERR on the front face of the board indicate the node
status and network st atu s. (Th e re ma i ning LED is not used.)
These LEDs illuminate in one of two colors (red or green), and each LED indicates a different
monitored status, as shown in the table below.
LED name Color Indicated status Description (meaning of indication)
(LINE-) ON
LINE-OFF
ERR
Green
Red
Red
Lit Online
Unlit Not online
Lit Offline
Unlit Not offline
Blinking at 1-Hz
frequency
Configuration error
Example: The I/O size determined by
Blinking at 4-Hz
frequency
Communication ASIC initialization error
Unlit No error
the mode setting switch [3]
does not match the I/O size
set by the configuration tool.
14
PfofiBus Gateway
[10] Port switch
This switch is used to enable the teaching pendant/PC connector (TP) (PORT ON = Start
communication).
Set this switch to the OFF position when connecting/removing the communication cable connector for
teaching pendant or PC software. To use the teaching pendant or PC software, plug in the connector
first, and then set the switch to the OFF position.
(Also check the signal status of the port switching input [4].)
Port switch ON: Power (24 VDC) is supplied to the teaching pendant. The emergency stop circuit
of the teaching pendant is enabled.
Port switch OFF: Power (24 VDC) to the teaching pendant is cut off. The emergency stop circuit of
the teaching pendant is disabled.
The baud rate between the teaching pendant or PC software and ProfiBus gateway can be set to a
maximum of 115.2 kbps. For your information, the baud rate between the ProfiBus gateway and
controller is fixed to 230.4 kbps.
When the port switch is turned ON, no ProfiBus communication error will generate, but the data
exchange via SIO communication will stop. Accordingly, the PLC’s output signals (data) will no longer
be output to the controller and the input signals (data) from the controller will remain as the values
that were effective immediately before the port switch was turned ON.
A PORT ON status signal (TPC) is output from the ProfiBus gateway to the PLC, so provide an
interlock or other process as necessary.
[11] Teaching pendant/PC connector
This connector is used to connect the communication cable connector for teaching pendant or PC
software.
[12] Power-supply input connector
This connector is used to connect the ProfiBus Gateway power (24 VDC).
15
PfofiBus Gateway
3. Installation and Noise Elimination Measures
Exercise due caution regarding the installation environment.
3.1 Installation Environment.
a. The Gateway Unit is not dustproof or waterproof (oilproof). Accordingly, avoid using the Gateway
Unit in a dusty place or place where the unit may come in contact with oil mist or splashed
cutting fluid.
b. Prevent the Gateway Unit from receiving direct sunlight or irradiated heat from large heat
sources such as heat treatment ovens.
c. Use the Gateway Unit in an enviro nment of 0 to 40°C in ambient temperature and 85% or below
in humidity (non-condensing) and free from corrosive or flammable gases.
d. Use the Gateway Unit in an environment where the unit will not receive external vibration or
shock.
e. Prevent electrical noise from entering the Gateway Unit or its cables.
3.2 Supply Voltage
24 VDC ± 10% / Current consumption: 300 mA max.
3.3 Noise Elimination Measures and Grounding
a. Installing the Gateway Unit
Connect the Gateway Unit by directly securing it onto a metal enclosure using screws.
* Provide class D (3) grounding for the enclosure.
Use as thick a cable as
possible and connect it
over the shortest possible
distance.
Metal
enclosure
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b. Notes on wiring method
Separate the communication lines of the Gateway Unit and ProfiBus module from lines carrying
large current such as power circuits. (Do not bundle them together or place them in the same
cable duct.)
c. Noise sources and elimination of noise
There are many noise sources, but the ones you should pay most attention to when building
your system are solenoid valves, magnet switches and relays. Noise from these sources can be
eliminated using the following measures.
[1] AC solenoid valves, magnet switches, relays
Measure --- Install a surge killer in parallel with the coil.
[2] DC solenoid valves, magnet switches, relays
Measure --- Install a diode in parallel with the coil. Determine an appropriate diode capacity
in accordance with the load capacity.
In a DC system, connecting the diode in reverse polarities may
damage the diode, internal controller parts, and DC power supply.
Exercise due caution.
+24 V
0 V
PfofiBus Gateway
← Point
Install the surge killer in a location as close as
possible to each coil.
If the surge killer is installed on a terminal block
or away from the coil, its noise elimination
effect will decrease.
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PfofiBus Gateway
3.4 Installation
Examine appropriate settings for the control box size, installation position of the Gateway Unit and cooling
method of the control box, so that the temperature around the Gateway Unit will remain at or below 40°C.
Install the Gateway Unit vertically on a wall, as shown below, and provide a minimum clearance of 50 mm
above and below the unit, with a minimum clearance of 100 mm provided on all sides for wiring access.
If multiple Gateway Units are installed side by side, provide a sufficient space between the adjacent units
so that any unit can be installed and removed easily.
If heat or noise is of concern, also provide appropriate measures.
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4. Wiring
4.1 Overall Configuration
The following is an example of ProfiBus system configuration using the Gateway Unit.
Host system (PLC master)
Gateway
Unit
SIO communication network
Terminal resistor
cable
Controller link
4-way junction
Teaching pendant
PfofiBus Gateway
24-V
power
supply
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PfofiBus Gateway
The ProfiBus network is wired as shown below.
For details on ProfiBus-DP, check the operation manual for the master (PLC) or website of the
Japanese PROFIBUS Organization.
Master
(Node address 2)
Terminal
resistor
Terminal
resistor
Slave
Slave Slave Slave
(Node address 3) (Node address 4) (Node address 5) (Node address 6)
[1] A device connected to a network and assigned an address is called a “node.” A node may be a
master or slave. Up to 32 nodes can be connected to one segment.
[2] It is recommended that the master be connected to one end of the network. Normally the master has
node address 2, while each slave has node address 3 to 32.
Node address 0 is reserved for a monitoring or diagnostic device, while node address 1 is reserved
for a monitoring device.
[3] One segment of the network must have a terminal resistor connected to both ends.
[4] For each ProfiBus cable, use the ProfiBus-DP type A cable specified by the EN 50170 standard. This
cable is a 2-core twisted pair cable with shield.
Cable
Red: Line B (positive side)
Green: Line A (negative side)
Shield
[5] All network connectors should be the D-sub, 9-pin connector specified by the EN 50170 standard.
The network bus connector can be of the screw type shown below or the quick connection type
where the wires are inserted into provided holes.
If the connector has a terminal resistor, turn the
terminal resistor switch ON only for the terminal slave,
and turn the switch OFF for all other slaves.
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PfofiBus Gateway
[6] The ProfiBus gateway connector should be the D-sub, 9-pin (female) connector recommended by the
ProfiBus DP Standard under EN 50170, as shown below.
The network connectors are not supplied.
Pin No. Signal name Description
1 NC Not connected
2 NC Not connected
3 B-Line Communication line B (Positive side)
4 NC Not connected
5 GND Signal ground
6 +5V +5-V output
7 NC Not connected
8 A-Line Communication line A (Negative side)
9 NC Not connected
Housing Shield Cable shield
Caution
The ProfiBus gateway has a built-in terminal resistor setting switch. If the ProfiBus gateway becomes
a terminal module on the network, turn this terminal resistor setting switch ON. If the ProfiBus gateway
is not a terminal module or an external terminal connector is used, turn the switch OFF.
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4.2 I/O Signals of Gateway Unit
(1) Connection diagram
ProfiBus communication
Emergency stop signal output for
teaching pendant
Allowable load voltage: 30 VDC
Allowable load current: 1 A
cable
Teaching pendant
Emergency stop
Gateway power supply
24 VDC ±10%,
300 mA max.
External port switching input
(provided by the customer)
(Load: 24 VDC, 7 mA)
SIO communication
cable
PfofiBus Gateway
Gateway Unit
Teaching pendant/
PC connector
Port switch
22
PfofiBus Gateway
(2) Port control and emergency stop signal output
The teaching pendant/PC connector port can be operated by external signals, other than by ON/OFF
switching of the port switch on the Gateway Unit.
While the port is ON, the Gateway Unit outputs contact signals of the emergency stop pushbutton
switch on the teaching pendant. Therefore, you can design an emergency stop circuit or other
protective circuit for the entire system by incorporating these signals.
External port
switching input
Port switch
OFF OFF Disabled (S1 and S2 shorted) Disabled
ON OFF
ON ON
An example of the emergency stop circuit is shown below.
Emergency
stop reset
Emergency stop
button switches
Teaching-pendant emergency stop
signal output
S1, S2 =
Enabled
Teaching pendant
Emergency stop
Gateway power
supply
(24 VDC ± 10%,
300 mA max.)
External port switching input
(provided by the customer)
SIO
communication
cable
Teaching-pendant
emergency stop contacts
ProfiBus
cable
(Load 24 VDC, 7 mA)
Teaching pendant/PC
connector port
Enabled OFF ON
Gateway unit
Teaching pendant/PC
connector
Port switch
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2
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(3) I/O signal specifications and wires
Symbol Description Specification Connector and applicable wire
Power-supply
SIO communication
ProfiBus
communication
Positive side of the 24-VDC
Gateway power supply
Negative side of the 24-VDC
Gateway power supply
Teaching-pendant
emergency stop signal output
External port switching input
24 VDC ±10%
Power consumption: 300 mA
max.
Allowable load voltage: 30 VDC 0.08 to 1.5 mm2
No-voltage (dry) contact input
Load: 24 VDC, 7 mA
input connector
24 V
N
S1
S2 Allowable load current: 1 A AWG 28 to 16
PORT IN
PORT N
SDA SIO communication line A Align the potential level of the
SDB SIO communication line B
GND Ground
connector
FG Frame ground
B-Line
Communication line B
(RS485)
connected controller or ERC
actuator with the potential level
of the GND (ground).
Internally connected to the
frame.
RTS Request to send
GND Signal ground (insulated)
+5V +5-V output (insulated)
connector
A-Line
Communication line A
(RS485)
0.8 to 1.3 mm
AWG 18 to 16
0.08 to 1.5 mm
AWG 28 to 16
Double shielded twistedpair cable (AWG22)
Recommended cable:
HK-SB/20276 X L
2P X AWG22 by Taiyo
Electric Wire & Cable
ProfiBus-DP type A cable
(2-core twisted pair cable
with shield)
2
The connection plug is a
standard accessory.
MC1.5/4-ST-3 y 5 (Phoenix
Contact)
The connection plug is a
standard accessory.
MC1.5/6-ST-3 y 81 (Phoenix
Contact)
The Gateway Unit has a
built-in terminal resistor, so
connect the terminal resistor
at the end of the SIO
communication line.
The connection plug should
be a D-sub, 9-pin connector,
but this plug is not supplied.
With ProfiBus, a terminal
resistor*1 must be
connected to both ends of
the trunk line. For details,
check the operation manual
for the master (PLC).
*1 The gateway unit has a built-in terminal resistor. Set the terminal switch ON/OFF to enable/disable this built-in terminal resistor.
PROFIBUS Gateway
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