Expert EX952N Series Installation guide

1
EX952N Series (Addressable RS422/485 to RS232 converter)
EX952N Quick Manual
Introduction
EX952N is an Addressable RS422/485 to RS232 converter that it is designed to
connect RS422/485 devises to an RS232 network.
On most computer systems, industrial device, PLCS, measurement equipment are
unbalanced transmission for communication distance, transmission speed, network
capability. The EX952N addressable converter solves the problem and let you easily
build up an RS485 network with your RS232 devices.
Features & Spec.
Built in "Addressable RS485 to RS232 Converter" firmware
Watchdog timer provides fault tolerance and recovery
CPU 80188, 40MHZ
oSRAM 256KB
oFLASH ROM 512KB
oEEPROM 2KB
oEMBEDDED OS RomDos(Datalight)
oCommunication speed: 115.2K bps max
oOperating temperature: -25℃to +75℃
oStorage temperature: -40℃to +80℃
oPower requirement: Unregulated 10~30 VDC power
Series EX9521D, EX9522D, EX9523D, EX9527D
Model No.
EX9521D
EX9522D
EX9523D
EX9527D
COM1
RS232(5wire)
RS232(5wire)
RS232(5wire)
RS232(5wire)
COM2
RS485
RS485
RS485
RS485
COM3
x
RS232(3wire)
RS232(3wire)
RS232(3wire)
COM4
X
X
RS232(3wire)
RS232(3wire)
COM5
X
X
X
RS232(3wire)
COM6
X
X
X
RS232(3wire)
COM7
X
X
X
RS232(3wire)
COM8
X
X
X
RS232(3wire)
COM4:Program download RS232 (3wire) EX9521D/22D/23D.
COM1:Program download RS232 (5wire) EX9527D.

2
Pin assignment of EX9521/22/23’s COM1 connector (DB-9 Male):
Pin
Name
Description
1
DCD
Data Carrier Detect
2
RXD
Receive Data
3
TXD
Transmit Data
4
DTR
Data Terminal Ready
5
GND
Signal ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
RI
Ring Indicator
Use COM4(EX9521/22/23)/COM1(EX9527) for downloading program
Power on the system when EX952N module’s INIT* pin is wired to ground and
COM4(EX9521/22/23)/COM1(EX9527) is connected to PC. The disk image can be
downloaded from PC to flash ROM of 952N module under Hyper-Terminal (Com
port setting: baudrate 57600, Databit 8, Parity None, Stopbit1, Flow control None) by
clicking “transfer”, “receive file”, then choose Xmodem as the protocol and key in the
file name and path. If the update is not successful, then repeat the process. If users
want to debug the system from COM4(EX9521/22/23)/COM1(EX9527), just power
on the system with INIT* floating. Note: INIT* must be disconnected from ground
immediately before the updating disk image completes, otherwise the system will
hang.

3
Quick Start
Initial pin & GND:
Each EX952N module has a build-in EEPROM to store configuration information
such as address, type, baudrate and other information. Sometimes, user may forget the
configuration. Therefore, the EX952N have a special mode named "INIT mode" , to
help user to resolve the problem. The "INIT mode" is setting as Address=00,
Baudrate=9600bps, Data bit=8, Parity=none, Stop bit=1, No checksum
To enable INIT mode, please following these steps:
Step1. Power on the 952N.
Step2. Touch the Init* to GND after power on then release the Init* with GND
Data format setting (COM port & status):
Read/Set the Baud rate: $AABN(Baud rate)…..….Page 8
Read /Set the Data-bit: $AADN(Data-bit).………Page 9
Read /Set the Parity: $AAPN(Parity-bit).……..Page 10
Read /Set the Stop-bit: $AAON(Stop-bit).……….Page 11
Address setting:
Use command $AAA(addr)………………………….Page 7
Wire connection:
RS-232
R 485 NetworkS-
EX9522 R 232 DeviceS R 232 DeviceS
EX9522 R 232 DeviceS R 232 DeviceS
EX9520

4
Command Sets
Command
Response
Description
$AAA(addr)
!AA
Read/Set the Module Address
$AABN(baud rate)
!AA(baud rate)
Read/Set Baud Rate of
COM-1/2/3/4/5/6/7/8
$AADN(data-bit)
!AA(data-bit)
Read/Set the Data-Bit of
COM-1/2/3/4/5/6/7/8
$AAPN(parity-bit)
!AA(parity-bit)
Read/Set the Parity-Bit of
COM-1/2/3/4/5/6/7/8
$AAON(stop-bit)
!AA(stop-bit)
Read/Set the Stop-Bit of
COM-1/2/3/4/5/6/7/8
$AA6(ID)
!AA
Set the ID-string of
COM-1/3/4/5/6/7/8
$AA7
!AA(ID)
Read the ID-string of
COM-1/3/4/5/6/7/8
$AAC(delimiter)
!AA(delimiter)
Read/Set the delimiter of
COM-1/3/4/5/6/7/8
$AAD
!AA(delimiter)
Read the delimiter of
COM-1/3/4/5/6/7/8
(delimiter) AA (bypass)
!AA
Bypass data-string to
COM-1/3/4/5/6/7/8
$AAKN(CrLfMode)
!AA(CrLfMode)
Read/Set the checksum-status of
COM2(RS485)
$AATN(CrLfMode)
!AA(CrLfMode)
Read/set the end-char of
COM-1/2/3/4
$AAXV
!AA
Set the RTS state of COM1
$AA5
!AAS
Read the resent status
$AAF
!AA(number)
Read the firmware version
number
$AAM
!AA(name)
Read the module name
$AA2
!AABDPK
Read the configuration of
COM2(RS485)
$AAW
!AAS
Read the CTS status of COM1
$AAU
(data)
Read data from RS232 COM port
buffer

5
Address mapping
9521
9522
9523
9527
COM1(RS232)
AA
AA
AA
AA
COM2(RS485)
AA
AA
AA
AA
COM3(RS232)
X
AA+1
AA+1
AA+1
COM4(RS232)
X
X
AA+2
AA+2
COM5(RS232)
X
X
X
AA+3
COM6(RS232)
X
X
X
AA+4
COM7(RS232)
X
X
X
AA+5
COM8(RS232)
X
X
X
AA+6
1. User must send command to COM2(RS-485), if the command is used to
set configuration of 952N, the 952N will directly echo message to COM2.
If the command is used to bypass data to RS-232 device, the data will be
sent to COM1/3/4/5/6/7/8(RS-232). Any message come from
COM1/3/4/5/6/7/8(RS-232) will be echo to COM2(RS-485) at any time.
2. The COM port address of 9521 is given as following:
COM1=RS-232 --> RS-232 Address=AA
COM2=RS-485
3. The COM port address of 9522 is given as following:
COM1=RS-232 --> RS-232 Address=AA
COM2=RS-485
COM3=RS-232 --> RS-232 Address=AA+1
9522 is used as two 9521 with addressAA, AA+1.
The COM port must use the same ModeCrLf485 and the ModeCrLf232 can be
different. The delimiters for two COM port can be different.
4. The COM port address of 9523 is given as following:
COM1=RS-232 --> RS-232 Address=AA
COM2=RS-485
COM3=RS-232 --> RS-232 Address=AA+1
COM4=RS-232 --> RS-232 Address=AA+2
9523 is used as three 9521 with addressAA, AA+1,AA+2.
The three COM port must use the same ModeCrLf485 and the ModeCrLf232 can be
different. The delimiters for these three COM port can be different.

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5. The COM port address of 9527 is given as following:
COM1=RS-232 --> RS-232 Address=AA
COM2=RS-485
COM3=RS-232 --> RS-232 Address=AA+1
COM4=RS-232 --> RS-232 Address=AA+2
COM5=RS-232 --> RS-232 Address=AA+3
COM6=RS-232 --> RS-232 Address=AA+4
COM7=RS-232 --> RS-232 Address=AA+5
COM8=RS-232 --> RS-232 Address=AA+6
9527 is used as seven 9521 with addressAA,AA+1,AA+2,AA+3,AA+4,AA+5,AA+6.
The three COM port must use the same ModeCrLf485 and the ModeCrLf232 can be
different. The delimiters for these three COM port can be different.

7
1. $AAA(addr)
Description: Read/Set the module address
Syntax: $AAA(addr)[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
Response: valid command !AA
Invalid command ?AA
Example:
command: $01A02 receive: !02
address 01 is changed to 02
command: $02AA0 receive: !A0
address 02 is changed to 0xA0
command: $00A receive: !02
address stored in EEPROM=02

8
2. $AABN(baud rate)
Description: Read/Set the baud rate of COM-1/2/3/4/5/6/7/8
Syntax: $AABN(baud rate)[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
N 0=Read/Set baud rate of RS485, 1=Read/Set baud rate of RS232
(baud rate) 300/600/1200/2400/4800/9600/19200/38400/57600/115200
Response: valid command !AA(baud rate)
Invalid command ?AA
Example: (Assume the AA of EX9523 is 01)
command: $01B0115200 receive: !01
Changes RS485(COM2) to 15200 BPS
command: $01B19600 receive: !01
Changes RS232(COM1) to 9600 BPS
command: $02B138400 receive: !02
Changes RS232(COM3) to 38400 BPS
command: $03B157600 receive: !03
Changes RS232(COM4) to 57600 BPS
SHORT-CODE FOR BAUD RATE:
300=1, 600=2, 1200=3, 2400=4, 4800=5, 9600=6, 19200=7, 38400=8,
57600=9,115200=A. The short-code of baud rate will be shown in the
7-SEGMENT LED3.

9
3. $AADN(data-bit)
Description: Read /Set the Data-Bit of COM-1/2/3/4/5/6/7/8
Syntax: $AADN(data-bit)[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
N 0=Read/Set the data-bit of RS485, 1=Read/Set the data-bit of RS232
(data-bit): 7 or 8
Response: valid command !AA(data-bit)
Invalid command ?AA
Example: (Assume the AA of EX9523 is 01)
command: $01D08 receive: !01
Changes data-bit of RS485(COM2) to 8
command: $01D17 receive: !01
Changes data-bit of RS232(COM1) to 7
command: $02D17 receive: !02
Changes data-bit of RS232(COM3) to 7
command: $03D17 receive: !03
Changes data-bit of RS232(COM4) to 7
VALID DATA-BIT:
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
9521
7/8
7/8
X
X
X
X
X
X
9522
7/8
7/8
7/8
X
X
X
X
X
9523
7/8
7/8
7/8
7/8
X
X
X
X
9524
7/8
7/8
7/8
7/8
X
X
X
X
9527
8
8
7/8
7/8
7/8
7/8
7/8
7/8

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4. $AAPN(data-bit)
Description: Read/Set the parity-bit of COM-1/2/3/4/5/6/7/8
Syntax: $AAPN(parity-bit)[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
N 0=Read/Set the parity-bit of RS485, 1=Read/Set the parity-bit of RS232
(parity-bit): 0=NONE, 1=EVEN, 2=ODD
Response: valid command !AA(data-bit)
Invalid command ?AA
Example: (Assume the AA of EX9523 is 01)
command: $01P00 receive: !01
Changes parity-bit of RS485(COM2) to NONE
command: $01P10 receive: !01
Changes parity-bit of RS485(COM1) to NONE
command: $02P11 receive: !02
Changes parity-bit of RS485(COM3) to EVNE
command: $03P12 receive: !03
Changes parity-bit of RS485(COM4) to ODD
VALID PARITY-BIT:
9521
9522
9523
9527
COM1 (RS232)
N/E/O
N/E/O
N/E/O
N
COM2 (RS485)
N/E/O
N/E/O
N/E/O
N
COM3 (RS485)
X
N/E/O
N/E/O
N/E/O
COM4 (RS232)
X
X
N/E/O
N/E/O
COM5 (RS232)
X
X
X
N/E/O
COM6 (RS232)
X
X
X
N/E/O
COM7 (RS232)
X
X
X
N/E/O
COM8 (RS232)
X
X
X
N/E/O
N: None E: Even O: Odd

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5. $AAON(stop-bit)
Description: Read/Set the stop-bit of COM-3/4/5/6/7/8
Syntax: $AAPN(stop-bit)[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
N 0=Read/Set the parity-bit of RS485, 1=Read/Set the parity-bit of RS232
(stop-bit) 1 for COM1/2, 1/2 for COM3/4
Response: valid command !AA(data-bit)
invalid command ?AA
Example: (Assume the AA of 9523 is 01)
command: $02O12 receive: !02
Changes the stop-bit of RS232 (COM3) to 2
command: $03O12 receive: !03
Changes the stop-bit of RS232 (COM4) to 2
Valid stop-bit:
9521
9522
9523
9527
COM1 (RS232)
1 OR 2
1 OR 2
1 OR 2
1
COM2 (RS485)
1 OR 2
1 OR 2
1 OR 2
1
COM3 (RS232)
X
1
1
1 OR 2
COM4 (RS232)
X
X
1
1 OR 2
COM5 (RS232)
X
X
X
1 OR 2
COM6 (RS232)
X
X
X
1 OR 2
COM7 (RS232)
X
X
X
1 OR 2
COM8 (RS232)
X
X
X
1 OR 2

12
6. $AA6(ID)
Description: Set the ID-string of COM-1/3/4/5/6/7/8, max=50
Characters
Syntax: $AA6(ID)[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
(ID): ID-string, max. 50 characters
Response: valid command !AA
invalid command ?AA
Example: (Assume the AA of 9523 is 01)
command: $016Temperature! receive: !01
ID of RS232 (COM1) is Temperature1
command: $026HP34401A-1 receive: !02
ID of RS232 (COM3) is HP3440A-1
command: $036HP34401A-2 receive: !03
ID of RS232 (COM4) is HP3440A-2

13
7. $AA7
Description: Read the ID=-String of COM-1/3/4/5/6/7/8
Syntax: $AA7[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
Response: valid command !AA(ID)
invalid command ?AA
(ID): ID-String, max. 50 characters.
Example: (Assume the AA of 9523 is 01)
command: $017 receive: !01 Temperature1
ID of RS232 (COM1) is Temperature1
command: $027 receive: !02 HP34401A-1
ID of RS232 (COM3) is HP34401A-1
command: $037 receive: !03 HP34401A-2
ID of RS232 (COM4) is HP3440A1-2

14
8. $AAC(delimiter)
Description: Read/Set the delimiter of COM-1/3/4/5/6/7/8
Syntax: $AAC(delimiter)[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
(delimiter): default delimiter is :
Response: valid command !AA (delimiter)
invalid command ?AA
Example: (Assume the AA of 9523 is 01)
command: $01C receive: !01:
Reads the delimiter of RS232 (COM2) :
command: $02C receive: !02:
Reads the delimiter of RS232 (COM3) :
command: $03C* receive: !03:
Changes the delimiter of RS232 (COM4) :
Note:
Note1: The delimiter of COM1/3/4/5/6/7/8 can be different.
Note2: The default delimiter is :
Note3: The delimiter cannot be $, ~, #, @, %, CR & LF

15
9. $AAD
Description: Read the delimiter of COM-1/3/4/5/6/7/8
Syntax: $AAD[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
Response: valid command !AA (delimiter)
invalid command ?AA
(delimiter): default delimiter is:
Example: (Assume the AA of 9523 is 01)
command: $01D receive: !01:
Reads the delimiter of RS232 (COM1) :
command: $02D receive: !02:
Reads the delimiter of RS232 (COM3) :
command: $03D receive: !03*
Changes the delimiter of RS232 (COM4) *
Note:
Note1: The delimiter of COM1/3/4/5/6/7/8 can be different.
Note2: The default delimiter is :

16
10. (delimiter)AA(bypass)
Description: Bypass data-string to COM-1/3/4/5/6/7/8
Syntax: (delimiter) AA (bypass)[chk](Cr)
AA module address 00 to FF
(bypass): data-string send to COM-1/3/4
Response: valid command !AA
invalid command ?AA
Example: (Assume the AA of 9523 is 01, the delimiters for COM1/3/4 are : / ;/*)
command: :01abcde receive: !01
Sends abcde to COM1
command: :02123456789 receive: !02
Sends 123456789 to COM3
command: *03 test receive: !03
Sends test to COM4

17
11. $AAKN(CrLfMode)
Description: Read/Set the checksum-status
Syntax: $AAKN(CrLfMode)[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
N 0= checksum disable, 1= checksum enable
Response: valid command !AA(CrLfMode)
invalid command ?AA
N=0 checksum disable, N=1 checksum enable
Example: (Assume the AA of 9523 is 01, the other AA of 9523 is 04)
command: $01K0 receive: !01
Disables checksum
command: $04K1 receive: !04
The checksum is enabled
Note: The checksum enable/disable is valid to COM2 only.

18
12. $AATN(CrLfMode)
Description: Read/Set the end-char of command string
Syntax: $AAK(CrLfMode)[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
N 0= Read/Set the parity-bit of RS485, 1= Read/Set the parity-bit of RS232
(CrLfMode):
0=(CrLf)→0x0D
1= (CrLf)→0x0D+0x0A
2= (CrLf)→0x0A
3= (CrLf)→0x0A+0x0D
4= No end-char
Response: valid command !AA(data-bit)
invalid command ?AA
Example: (Assume the AA of 9523 is 01)
command: $01T0 receive: !014
The end-char of COM2 is no end character
command: $01T1 receive: !011
The end-char of COM1 is 0x0D+0x0A
command: $02T1 receive: !022
The end-char of COM3 is 0x0A
command: $03T1 receive: !033
The end-char of COM4 is 0x0A+0x0D
Note: The default CrLfMode = 4 then the default (CrLf) = NONE for all port.

19
13. $AAXV(CrMode)
Description: Set the RTS-state of COM1
Syntax: $AAXV[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
V 0= set RTS inactive, 1= set RTS to active_HIGH state
Response: valid command !AA
invalid command ?AA
Example: (Assume the AA of 9523 is 01)
command: $01X0 receive: !01
Sets the RTS of COM1 to inactive state
command: $02X1 receive: !02
Sets the RTS of COM3 to active-HIGH state
COM1(RS232)
COM2(RS485) / COM3 / COM4
9521
AA
AA / X / Download
9522
AA
(AA/AA+1) / (AA+1) /Download
9523
AA
(AA/AA+1/AA+2)/(AA+1)/(AA+2/Download)
COM1(RS232)
COM2(RS485)/
COM3/COM4/COM5/COM6/COM7/COM8
9527
AA/Download
(AA/AA+1/AA+2/AA+3/AA+4/AA+5/AA+6)/
(AA+1)/(AA+2)/(AA+3)/(AA+4)/(AA+5)/(AA+6)
Note: The RTS-state is valid for COM1 & COM3

20
14. $AA5
Description: Read resets status.
Syntax: $AA5[chk](Cr)
$ is a delimiter character
AA module address 00 to FF
Response: valid command !AAS
invalid command ?AA
Syntax error or communication error or address error
S=0 it has not been reset since the last reset status read
S=1 it has been reset since the last reset status read
Example:
command: $015 receive: !011
It is first time power-on reset
command: $015 receive: !010
It is normal
command: $015 receive: !010
It is normal
command: $015 receive: !011
This module has been “reset” by module hardware watchdog. Therefore all
output is going to its start-values now.