B&B Electronics RS-485 Digital I/O Module 485SDD16 Скачать руководство пользователя страница 18 | Manualshive

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B&B Electronics RS-485 Digital I/O Module 485SDD16 Скачать руководство пользователя страница 18

485SDD16-1005 Manual

Appendix A

A-1

B&B Electronics -- 707 Dayton Road -- Ottawa, IL 61350

PH (815) 433-5100 -- FAX (815) 433-5104

APPENDIX A

ASCII Character Codes

A-2

Appendix A

485SDD16-1005 Manual

B&B Electronics -- 707 Dayton Road -- Ottawa, IL 61350

PH (815) 433-5100 -- FAX (815) 433-5104

Decimal ASCII

0 ................... NUL
1

................... SOH

2

................... STX

3

................... ETX

4

................... EOT

5

................... ENQ

6

................... ACK

7

................... BEL

8

................... BS

9

................... HT

10 ................. LF
11 ................. VT
12 ................. FF
13 ................. CR
14 ................. SO
15 ................. SI
16 ................. DLE
17 ................. DC1
18 ................. DC2
19 ................. DC3
20 ................. DC4
21 ................. NAK
22 ................. SYN
23 ................. ETB
24 ................. CAN
25 ................. EM
26 ................. SUB
27 ................. ESC
28 ................. FS
29 ................. GS
30 ................. RS
31 ................. US
32 ................. SP
33 .................

!

34 .................

"

35 .................

#

36 .................

$

37 .................

%

38 .................

&

Decimal ............ASCII

39 ..................

"

40 ..................

(

41 ..................

)

42 ..................

*

43 ..................

+

44 ..................

"

45 ..................

-

46 ..................

.

47 ..................

/

48 ..................

0

49 ..................

1

50 ..................

2

51 ..................

3

52 ..................

4

53 ..................

5

54 ..................

6

57 ..................

9

58 ..................

:

59 ..................

;

60 ..................

<

61 ..................

=

62 ..................

>

63 ..................

?

64 ..................

@

65 ..................

A

66 ..................

B

67 ..................

C

68 ..................

D

69 ..................

E

70 ..................

F

71 ..................

G

72 ..................

H

73 ..................

I

74 ..................

J

75 ..................

K

76 ..................

L

77 ..................

M

78 ..................

N

79 ..................

O

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Содержание RS-485 Digital I/O Module 485SDD16

Страница 1: ...Document ation Number 485SDD16 1005 pn 3605 r1 This product Designed and Manufactured In Ottawa Illinois USA of domestic and imported parts by B B Electronics Mfg Co Inc 707 Dayton Road P O Box 1040 O...

Страница 2: ...Chapter 4 I O Interfacing 17 Digital Inputs 17 Digital Outputs 19 ii Table of Contents 485SDD16 1005 Manual B B Electronics 707 Dayton Road Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5104 Chapter 5 S...

Страница 3: ...utomatically detects baud rates from 1200 to 9600 A data format of 8 data bits 1 stop bit and no parity is used Configuration parameters are stored in non volatile memory These parameters consists of...

Страница 4: ...es 256 Factory default 48 decimal Turn around Delay Software programmable from 0 to 255 character transmission times Factory default 1 Baud Rate 1200 to 9600 automatic detection Format 8 data bits 1 s...

Страница 5: ...an RS 422 RS 485 serial port The 485SDD16 will work on a 2 wire or 4 wire RS 485 multi node network Refer to B B Electronics free RS 422 485 Application Note for more information The unit automatical...

Страница 6: ...ly Connections Power to the 485SDD16 must be supplied by an external power supply connected to the 12Vdc and GND terminal blocks or to the I O connector An external power supply must be able to supply...

Страница 7: ...have a numeric value of zero but has a value of 48 The decimal and hexadecimal equivalents of some ASCII characters are shown in Table 3 2 Some commands require additional data bytes to complete the...

Страница 8: ...The Read I O Lines command returns two data bytes that reflect the state of the I O lines The first data byte contains the most significant I O lines 15 8 The second data byte contains the least sign...

Страница 9: ...racter transmission time The turn around delay can be computed as follows character time 1 baud rate 10 turn around delay character time data byte Command addr SC Argument turn around delay Response n...

Страница 10: ...he eight most significant I O lines 15 8 and the eight least significant I O lines 7 0 respectively If a bit position is set to a 0 the I O line is defined as an input if set to a 1 the I O line is de...

Страница 11: ...re used to sense a HIGH or a LOW state This can be accomplished via switch closures contact closures or a solid state digital signal When an I O line defined as an input senses a voltage level above 2...

Страница 12: ...l solid state output modules CMOS and TTL logic circuits Caution must be taken not to exceed the power capability of the outputs Refer to the output specifications in Chapter 1 Setting an output line...

Страница 13: ...or LSIO with the appropriate mask of an I O line the status of the I O line can be determined If the status is equal to zero the I O line is LOW If the status is not equal to zero the I O line is HIG...

Страница 14: ...nd power up state of I O lines 2 10 of module 5 24 485SDD16 1005 Manual B B Electronics 707 Dayton Road Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5104 Maddr 5 mask H4 Cmnd CHR Maddr RC PRINT 1 Cmnd...

Страница 15: ...1 HIGH and the I O line will be defined as an Output 26 485SDD16 1005 Manual B B Electronics 707 Dayton Road Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5104 Step 1b Define an I O line as an Input MS...

Страница 16: ...requires a data byte The data byte is used to specify the new address of the module Step 1 Construct the command string Cmnd CHR Maddr SA CHR Naddr Where Maddr if the module s current address and Nadd...

Страница 17: ...s an illustration of how to send and receive commands from the 485SDD16 NOTE This is a demonstration program only and not intended for system applications Running Demonstration Program Before you can...

Страница 18: ...433 5100 FAX 815 433 5104 Decimal ASCII 0 NUL 1 SOH 2 STX 3 ETX 4 EOT 5 ENQ 6 ACK 7 BEL 8 BS 9 HT 10 LF 11 VT 12 FF 13 CR 14 SO 15 SI 16 DLE 17 DC1 18 DC2 19 DC3 20 DC4 21 NAK 22 SYN 23 ETB 24 CAN 25...

Страница 19: ...87 W 88 X 89 Y 90 Z 91 92 93 94 95 _ 96 97 a 98 b 99 c 100 d 101 e 102 f 103 g 104 h 105 i 106 j 107 k 108 l 109 m 110 n 111 o 112 p 113 q 114 r 115 s 116 t 117 u 118 v Decimal ASCII 119 w 120 x 121...

Страница 20: ...h each decimal symbol having a value from 0 to 9 The hexadecimal base 16 numbering system represents each position in successive powers of 16 with each hex symbol having a value of 0 to 15 Since each...

Страница 21: ...decimal symbol Example Convert 10FC hexadecimal to decimal 10FC hex equals 4348 decimal Decimal to Hexadecimal Conversion Example Convert 4348 decimal to hexadecimal 4348 decimal equals 10FC hexadecim...

Страница 22: ...nnector Each of the twenty five pins on the connector is brought out to a terminal block Refer to Table C 1 Dimensions 0 5 x 2 1 x 4 3 An enclosure for the DTB25 is available Figure C 1 DTB25 Outline...

Страница 23: ...5SDD16 1005 Manual B B Electronics 707 Dayton Road Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5104 Table C 2 DBM16 I O Connections T B 1 Label Function T B 2 Label Function I O7 I O Line 7 I O8 I O L...

Страница 24: ...ignals Each DBM16 input is pulled up through a resistor and will be read as a logic 1 HIGH by the SDD16 module When an input on the DBM16 is grounded below 1 5Vdc a logic 0 LOW will be read by the SDD...

Страница 25: ...aces Figure C 7 Solid State Output Figure C 8 Isolated Mechanical Output C 8 Appendix C 485SDD16 1005 Manual B B Electronics 707 Dayton Road Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5104 Figure C 9...

Страница 26: ...C 9 B B Electronics 707 Dayton Road Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5104 Figure C 10 DBM16 Schematic C 10 Appendix C 485SDD16 1005 Manual B B Electronics 707 Dayton Road Ottawa IL 61350 P...

Страница 27: ...85SDD16 receives an communication error on a data byte I O byte for Read Digital command or state byte for Set Output State command the command will be executed since the unit has no way of knowing th...

Страница 28: ...elay addr SC x x no response Define I O Lines addr SD I O msb I O msb I O msb I O msb no response Set Power up States addr SS I O msb I O msb I O lsb I O lsb no response Read Configuration addr RC I O...

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