ICP DAS USA I-7521 User manual

I-7521/I-7522/I-7522A/I-7523/I-7524/I-7527 User’s Manual,Ver2.5 Aug.2015
1
I-7521/I-7522/I-7522A/I-7523/I-7524
/I-7527
User’s Manual
Warranty
All products manufactured by ICP DAS are warranted against defective materials for a
period of one year from the date of delivery to the original purchaser.
Warning
ICP DAS assume no liability for damages resulting from the use of this product. ICP
DAS reserves the right to change this manual at any time without notice. The
information furnished by ICP DAS is believed to be accurate and reliable. However, no
responsibility is assumed by ICP DAS for its use, nor for any infringements of patents
or other rights of third parties resulting from its use.
Copyright
Copyright 2006 by ICP DAS. All rights are reserved.
Trademark
The names used for identification only may be registered trademarks of their respective
companies.
World Wide Web Home Page and FTP Site
To access ICPDAS home page go to http://www.icpdas.com
To download document and software go to http://www.icpdas.com/download/752n.htm
or ftp://ftp.icpdas.com.tw/pub/cd/8000cd/napdos/752n/
Technical Support
Questions and requests can be sent via E-mail to [e-mail]

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TABLE OF COMTENTS
CHAPTER 1 INTRODUCTION ...........................................................................4
1.1. OVERVIEW................................................................................................4
1.2. FEATURES.................................................................................................8
1.3. DIMENSIONS .............................................................................................9
1.4. PIN ASSIGNMENT....................................................................................11
1.5. SPECIFICATIONS.....................................................................................23
1.6. WIRING DIAGRAMS FOR APPLICATION.................................................25
1.6.1. Program download.................................................................25
1.6.2. Using a 3-wire RS-232 port ...................................................26
1.6.3. Using a 5-wire RS-232 port ...................................................27
1.6.4. Using a RS-485 port...............................................................28
1.6.5. Using DI/DO of I-7521(D)......................................................29
1.6.6. Using DI/DO of I-7522A(D)...................................................30
1.6.7. Using a RS-485 of I-7522A(D)...............................................31
1.7. COMPARISON TABLE..............................................................................32
CHAPTER 2 OPERATING PRINCIPLES..........................................................34
2.1 INIT* PIN OPERATING PRINCIPLES........................................................34
2.2 DEMO CODE,FIRMWARE AND 7188XW.EXE..........................................36
2.3 THE RS-485 PORT AND SELF-TURNER ASIC........................................37
2.4 7-SEGMENT LED DISPLAY.....................................................................37
2.5 752N PROTOCOL DESCRIPTION..............................................................38
2.6 WRITING PROGRAM ON 752N................................................................43
CHAPTER 3 QUICK START .............................................................................44
3.1 CONNECTING THE I-752NMODULE.......................................................45
3.2 CONNECTING TO A SINGLE REMOTE RS-232 DEVICE..........................52
3.3 CONNECTING TO MULTIPLE REMOTE RS-232 DEVICE........................57
3.4 DOWNLOADING NEW FIRMWARE TO THE I-752N MODULE .................60
3.4.1. Using MiniOS7 Utility to download new firmware.............60
3.4.2. Using 7188xw.exe to download a file ....................................62
CHAPTER 4 DI/DO AND WATCHDOG...........................................................63
4.1 DO OPERATION PRINCIPLES .................................................................63
4.2 DI OPERATION PRINCIPLES...................................................................63
4.3 DUAL WATCHDOG OPERATION PRINCIPLES........................................64
4.4 HOST WATCHDOG APPLICATION NOTES..............................................64
4.5 MODULE WATCHDOG APPLICATION NOTES........................................66
CHAPTER 5 COMMAND SETS........................................................................67
5.1 COMMAND SET TABLE...........................................................................67
5.2 ADDRESS MAPPING TABLE ....................................................................68
5.3 COMMANDS.............................................................................................69

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5.3.1 $AAA[addr]............................................................................69
5.3.2 $AABN[baud rate].................................................................70
5.3.3 $AADN[data-bit]....................................................................72
5.3.4 $AAPN[parity-bit] .................................................................74
5.3.5 $AAON[stop-bit]....................................................................76
5.3.6 $AA6[ID].................................................................................78
5.3.7 $AA7........................................................................................79
5.3.8 $AAC[delimiter].....................................................................80
5.3.9 $AAD.......................................................................................81
5.3.10 [delimiter]AA[bypass]............................................................82
5.3.11 $AAKV....................................................................................83
5.3.12 $AATN[CrLfmode]................................................................84
5.3.13 $AAW......................................................................................86
5.3.14 $AAXV....................................................................................87
5.3.15 $AAYN....................................................................................88
5.3.16 $AAZNV .................................................................................89
5.3.17 #** ...........................................................................................91
5.3.18 $AA4........................................................................................92
5.3.19 $AA5........................................................................................94
5.3.20 $AAF .......................................................................................96
5.3.21 $AAM......................................................................................97
5.3.22 $AA2........................................................................................98
5.3.23 ~** ...........................................................................................99
5.3.24 ~AA0......................................................................................100
5.3.25 ~AA1......................................................................................101
5.3.26 ~AA2......................................................................................103
5.3.27 ~AA3ETT..............................................................................105
5.3.28 ~AA4P & ~AA4S..................................................................106
5.3.29 ~AA5P & ~AA5S..................................................................107
5.3.30 $AAU.....................................................................................108
5.3.31 $AAL[data]...........................................................................110
5.3.32 $AAR.....................................................................................112
5.3.33 $AAJN[timeout] ...................................................................113
5.3.34 $AAGN[triggerlevel]............................................................115
5.3.35 @AA[data]............................................................................116
5.3.36 #AABBHH............................................................................118
5.3.37 #AABCDD ............................................................................119
5.3.38 $AAEV ..................................................................................120
5.3.39 $AAHV..................................................................................122
5.3.40 $AAIV ...................................................................................124
CHAPTER 6 APPLICATIONS.........................................................................125
6.1. CNNECTING TO THE HP34401A...........................................................125
6.1.1 Connect the I-752N module to the HP34401A...................125
6.1.2 Connecting a PC to the HP34401A.....................................125
6.1.3 Connecting a single I-7522 to a single HP34401A .............127
6.1.4 Connecting multiple I-7522 modules and multiple HP34401A
129
6.1.5 Connecting a single I-7523 modules and two HP34401A..131
6.1.6 Connecting multiple I-7523 modules and multiple HP34401A
133
6.2. TYPICAL APPLICATIONS ......................................................................135
APPENDIX A MINIOS7 UTILITY.................................................................................142
APPENDIX B 7188XW.EXE...........................................................................................143
APPENDIX C FIRMWARE VERSION INFORMATION .............................................148

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Chapter 1 Introduction
Nowadays, a great number of RS-232 devices for both automation
and information transfer are being used in industrial applications, and
linking these devices is very important in the modern situation. The
devices are usually located at a distance from the Host PC, meaning
that linking via multiple serial cards is inefficient. ICPDAS I-752N
series products have been developed to provide an effective link
between multiple RS-232 devices via a single RS-485 network. This
network protocol offers stability, reliability and simple cabling while
delivering a low–cost, easy-to-maintain product.
1.1. Overview
Addressable RS-232 Converter
Most RS-232 devices don’t support individual device addressing. To
overcome this limitation, ICPDAS I-752N series modules assign a
unique address to any RS-232 device installed on an RS-485 network.
When the Host PC sends a command to the RS-485 network a device
address can be attached to the command. The destination I-752N
module will then remove the address field and pass the remaining
commands to the destination RS-232 device. Responses from the
local RS-232 devices will be returned to the Host PC via the I-752N
module.
Responses from RS-232 devices can be addressable
ICPADS I-752N series modules can prefix a response from an RS-232
device with a unique address and then pass the response to the
RS-485 network. The Host PC can then identify which RS-232 device
the response comes from.
Master-type Addressable RS-232 Converter

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ICPDAS I-752N products are unique. In that they are Master-type
converters, while most other converters are Slave-type, which are
helpless without a Host PC. In real industrial applications, many users
are not satisfied with Slave-type converters as they cannot be adapted
to individual requirement. The powerful I-752N series analyzes the DI /
DO of local RS-232 devices without the need for a Host PC. Refer to
Applications 7~9 in Sec.6.2 for more information.
Onboard 1Kb Queue buffer
I-752N series modules are equipped while a 1Kb queue buffer for its
local RS-232 device. All input data can be stored in the queue buffer
until the Host PC has time to read it. These features allow the Host PC
to be linked to thousands of RS-232 devices without any loss of data.
(Refer to Sec.5.3.30)
Onboard DI signal trigger
I-752N series modules are equipped with 1/2/5 DI channels for sensor
interfacing. These DI channels are linked to a photo sensor/switch to
act as a signal. They also can be used as general purpose DI. I-752N
series modules provide ODM and applicatin demos for a user to
modify them to read and analyze these DI signals without the need for
a Host PC.
Onboard DO channels for emergency control
I-752N series modules equipped with 1/3/5 DO channels for
emergency control. The DO channels can directly drive either relay or
an LED, and can be used to control the local devices in the event of an
emergency. I-752N series modules provide ODM and applicatin
demos for a user to modify them to control these DO channels without
the need for a Host PC.
3000V isolation on the RS-485 side

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COM2 of the I-7521/I-7522/I-7523 modules is an isolated RS-485 port
with 3000V isolation, which will protect the local RS-232 devices from
transient noises coming from the RS-485 network.
Self-Tuner ASIC inside
The interned I-752N Self-Tuner ASIC for the RS-485 port can auto
detect and control the send/receive direction of the RS-485 network,
meaning that there is no need for application programs to be
concerned about direction control of the RS-485 network.
A Wide range available for selection
RS-232
RS-485
RS-232/
RS-485
RS-422/
RS-485
DI
DO
I-7521(D)
1
1
2
3
I-7522(D)
1
1
1
2
1
I-7523(D)
2
1
1
1
0
I-7522A(D)
1
1
1
5
5
I-7524(D)
3
1
1
1
1
I-7527(D)
6
1
1
1
1
Note: I-752N means any one of seven kinds of modules above.
Order Information
Order item choice
Order item
Module name
O.S
I-7521(D)
Intelligent communication controller
(1 channel of RS-232)
MiniOS7
I-7522(D)
Intelligent communication controller
(2 channel of RS-232)
MiniOS7
I-7523(D)
Intelligent communication controller
(3 channel of RS-232 )
MiniOS7
I-7522A(D)
Intelligent communication controller
(1 channel of RS-232 and 1 channel
Of RS-422/485)
MiniOS7
I-7524(D)
Intelligent communication controller
MiniOS7

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(4 channel of RS-232)
I-7527(D)
Intelligent communication controller
(7 channel of RS-232)
MiniOS7
I-7XXX
I-7XXX without 7-SEG display
MiniOS7
I-7XXXD
I-7XXX with 7-SEG display
MiniOS7
Package List
The package includes the following item:
One I-7521/I-7522/I-7522A/I-7523/I-7524/I-7527 User’s
Manual (this manual)
One release note(Depend on situation)
One software utility disk or CD
One download cable CA0910F for I-7521, I-7522, I-7523
CA0910 for I-7522A, I-7524, I-7527
Note:
If any of these items are missing or damaged, contact the local
distributors for more information. Save the shipping materials
and cartons in case you want to ship in the future.
Release Note (Important):
It is recommended to read the release note first. All important
information will be given in release note as follows:
Influential modification about software or hardware
The path that points to I-752N document and software
changes in the companion CD
others……….

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1.2. Features
General
Built-in “Addressable RS-232 Converter” firmware
Supports Dual-Watchdog commands
Supports Power-up value & safe value for DO
The firmware code is open source and well documented
Source code could be modified depending on according specific
user requirements.
The firmware can monitor the onboard DI and control the onboard
DO in real-time depending on user requirements
The firmware can monitor the RS-232 device and control the
onboard DO in real-time according to user’s requirements
Watchdog timer provides fault tolerance and recovery
Low power consumption
R.O.C. Invention Patent No. 086674
R.O.C. Invention Patent No. 103060
R.O.C. Patent No. 132457

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1.3. Dimensions
For I-7521(D)/I-7522(D)/I-7523(D)

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For I-7522A(D)/I-7524(D)/I-7527(D)

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1.4. Pin Assignment

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Pin assignment of 13-pin screw terminal block(I-7521/I-7521D):
Pin
Name
Description
1
X3
Connects to I/O expansion board
2
X2
Connects to I/O expansion board
3
X1
Connects to I/O expansion board
4
DO3
Digital output, 150mA, 30V
5
DO2
Digital output, 150mA, 30V
6
DO1
Digital output, 150mA, 30V
7
DI3
Digital input, 3.5V ~ 30V
8
DI2
Digital input, 3.5V ~ 30V
9
INIT*
Initial pin, 3.5V ~ 30V
10
D2+
DATA+ pin of COM2 (RS-485)
11
D2-
DATA- pin of COM2 (RS-485)
12
+VS
V+ of power supply (+10 to +30VDC
unregulated)
13
GND
GND of power supply
Pin assignment of COM1 connector (DB-9 Male):
Pin
Name
Description
1
Data+
DATA+ of RS-485 port
2
TXD
Transmits Data (RS-232)
3
RXD
Receives Data (RS-232)
4
N/C
No Connection
5
GND
Signal ground of RS-232
6
N/C
No Connection
7
CTS
Clear To Send (RS-232)
8
RTS
Request To Send (RS-232)
9
Data-
DATA- of RS-485 port
Note: The COM1 can be used as s RS-232 port or s RS-485 port. It
is not recommended to use both RS-232 & RS-485 at the same
time.

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Pin assignment of 13-pin screw terminal block(I-7522/I-7522D):
Pin
Name
Description
1
CTS3
Clear To Send of COM3 (RS-232)
2
RTS3
Request To Send of COM3 (RS-232)
3
RXD3
Receives Data of COM3 (RS-232)
4
TXD3
Transmits Data of COM3 (RS-232)
5
GND
Signal ground of COM3 & COM4
6
DO1
Digital output, 150mA, 30V
7
DI3
Digital input, 3.5V ~ 30V
8
DI2
Digital input, 3.5V ~ 30V
9
INIT*
Initial pin, 3.5V ~ 30V
10
D2+
DATA+ pin of COM2 (RS-485)
11
D2-
DATA- pin of COM2 (RS-485)
12
+VS
V+ of power supply (+10 to +30VDC
unregulated)
13
GND
GND of power supply
Pin assignment of COM1 connector (DB-9 Male):
Pin
Name
Description
1
Data+
DATA+ of RS-485 port
2
TXD
Transmits Data (RS-232)
3
RXD
Receives Data (RS-232)
4
N/C
No Connection
5
GND
Signal ground of RS-232
6
N/C
No Connection
7
CTS
Clear To Send (RS-232)
8
RTS
Request To Send (RS-232)
9
Data-
DATA- of RS-485 port
Note: The COM1 can be used as a RS-232 port or a RS-485 port. It
is not recommended to use both RS-232 & RS-485 at the same
time.

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Pin assignment of bottom 14-pin screw terminal block (I-7522A
/I7522AD):
Pin
Name
Description
1
DO
100 mA, 30V max. DO1
2
DI
3.5V ~ 30V,DI1
3
D1+
DATA+ pin of COM1 (RS-485)
4
D1-
DATA - pin of COM1 (RS-485)
5
CTS1
Clear To Send of COM1 (RS-232)
6
RTS1
Request To Send of COM1 (RS-232)
7
GND
Signal ground of RS-232
8
TXD1
Transmits Data of COM1 (RS-232)
9
RXD1
Receives Data of COM1 (RS-232)
10
INIT*
Initial pin, 3.5V ~ 30V
11
D2+
DATA+ pin of COM2 (RS-485)
12
D2-
DATA - pin of COM2 (RS-485)
13
+VS
V+ of power supply (+10 to +30VDC unregulated)
14
GND
GND of power supply
Note: The COM1 can be used as a RS-232 port or a RS-485 port. It is
not recommended to use both RS-232 and RS-485 at the same time.
Pin assignment of top 14-pin screw terminal block:
15
TXD3+
TXD+ pin of COM3 (RS-422/RS-485)
16
TXD3-
TXD - pin of COM3 (RS-422/RS-485)
17
RXD3+
RXD+ pin of COM3 (RS-422)
18
RXD3-
RXD - pin of COM3 (RS-422)
19
DI0
Digital Input, 3.5V ~ 30V, DI2
20
DI1
Digital Input, 3.5V ~ 30V, DI3
21
DI2
Digital Input, 3.5V ~ 30V, DI4
22
DI3
Digital Input, 3.5V ~ 30V, DI5
23
GND
GND of Digital Output
24
PWR
Power of Digital Output
25
DO0
Digital Output, 100 mA, 30V max., DO2
26
DO1
Digital Output, 100 mA, 30V max., DO3
27
DO2
Digital Output, 100 mA, 30V max., DO4
28
DO3
Digital Output, 100 mA, 30V max., DO5

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Pin assignment of 13-pin screw terminal block(I-7523/I-7523D):
Pin
Name
Description
1
CTS3
Clear To Send of COM3 (RS-232)
2
RTS3
Request To Send of COM3 (RS-232)
3
RXD3
Receives Data of COM3 (RS-232)
4
TXD3
Transmits Data of COM3 (RS-232)
5
GND
Signal ground of COM3 & COM4
6
TXD4
Transmits Data of COM4 (RS-232)
7
RXD4
Receives Data of COM4 (RS-232)
8
DI2
Digital input, 3.5V ~ 30V
9
INIT*
Initial pin, 3.5V ~ 30V
10
D2+
DATA+ pin of COM2 (RS-485)
11
D2-
DATA- pin of COM2 (RS-485)
12
+VS
V+ of power supply (+10 to +30VDC
unregulated)
13
GND
GND of power supply
Pin assignment of COM1 connector (DB-9 Male):
Pin
Name
Description
1
Data+
DATA+ of RS-485 port
2
TXD
Transmits Data (RS-232)
3
RXD
Receives Data (RS-232)
4
N/C
No Connection
5
GND
Signal ground of RS-232
6
N/C
No Connection
7
CTS
Clear To Send (RS-232)
8
RTS
Request To Send (RS-232)
9
Data-
DATA- of RS-485 port
Note: The COM1 can be used as a RS-232 port or a RS-485 port. It
is not recommended to use both RS-232 and RS-485 at the same
time.

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Pin assignment of bottom 14-pin screw terminal block (I-7524/
I-7524D):
Pin
Name
Description
1
DO
100 mA, 30V max.
2
DI
3.5V ~ 30V
3
D1+
DATA+ pin of COM1 (RS-485)
4
D1-
DATA - pin of COM1 (RS-485)
5
CTS1
Clear To Send of COM1 (RS-232)
6
RTS1
Request To Send of COM1 (RS-232)
7
GND
Signal ground of RS-232
8
TXD1
Transmits Data of COM1 (RS-232)
9
RXD1
Receives Data of COM1 (RS-232)
10
INIT*
Initial pin, 3.5V ~ 30V
11
D2+
DATA+ pin of COM2 (RS-485)
12
D2-
DATA - pin of COM2 (RS-485)
13
+VS
V+ of power supply (+10 to +30VDC unregulated)
14
GND
GND of power supply
Note: The COM1 can be used as a RS-232 port or a RS-485 port. It is
not recommended to use both RS-232 & RS-485 at the same time.
Pin assignment of top 14-pin screw terminal block:
15
CTS3
CTS pin of COM3 (RS-232)
16
RTS3
RTS pin of COM3 (RS-232)
17
TXD3
TXD pin of COM3 (RS-232)
18
RXD3
RXD pin of COM3 (RS-232)
19
GND
GND pin of COM3/COM4 (RS-232)
20
CTS4
CTS pin of COM4 (RS-232)
21
RTS4
RTS pin of COM4 (RS-232)
22
TXD4
TXD pin of COM4 (RS-232)
23
RXD4
RXD pin of COM4 (RS-232)
24
GND
GND pin of COM4/5 (RS-232)
25
CTS5
CTS pin of COM5 (RS-232)
26
RTS5
RTS pin of COM5 (RS-232)
27
TXD5
TXD pin of COM5 (RS-232)
28
RXD5
RXD pin of COM5 (RS-232)