1. Bn bit c nhng chun truyn thng cng nghip no? Ghi r.

- CAN, CANOpen, Profibus, Profinet, Modbus, ..

2. Li ch ca vic dng mng trong t ng ha v iu khin.

- D qun l, d truy cp, d thay th, bo tr

3. Khuyt im ca vic dng mng trong t ng ha v iu khin.

- Tn km chi ph hun luyn ngi vn hnh, gim st

4. Cc chun truyn thng cng nghip thng thng dng bao nhiu level trong OSI

model? Nhng level gi?

- Dng 3 layer (level) trong m hnh OSI: Physical Layer ( Layer 1), Data Link Layer

(Layer 2), Application Layer (Layer 7)

5. Nguyn l Encapsulation l g?

-

LONGTypewritercu hnh c thit b, chn on c thit b, gim lng dy,m rng mng

LONGTypewriter

LONGTypewriter

LONGTypewriteran ninh

LONGTypewriterng gi, thng tin lng nhau

LONGTypewritergip lp trinh vien nhn chng trnh di gc d tng qut hn (gc i tng)

LONGTypewriternhm cc chng trnh con lin kt lun l thnh chng trnh ln hn c th c bin dch tng phn ring r

6. Gii thch ngha ca cc hnh chp v hnh chp ngc trong vic phn chia cc

level trong h thng t ng ha tch hp.

- Hnh chp: i t di ln, lng d liu tng dn: bits words 10 words files; v thi gian x l gim dn (do lng d liu ln ): ms 10 ms 100 ms seconds

- Hnh chp ngc: ngc li

7. Nu ni mng dng cable ng trc th ni n level no trong 7 level OSI model ?

- Physical Layer

LONGTypewriter

8. Protocol tng ng vi g trong cuc sng i thng (ly v d). N thuc level

no ?

- Ging nh ngn ng (language) trong cuc sng, thuc Application Layer

9. Ni n a ch ca 1 device trong mng tc l cp n level no ?

- Link layer

10. Ni n tnh chn/l ca 1 cng truyn thng trong mng tc l cp n level no ?

- Link layer

11. Ni n data ca 1 frame truyn trong mng tc l cp n level no ?

- Application layer

12. Half duplex v Full duplex l g?

- Bn song cng v song cng. Bn song cng ti mi thi im tn hiu ch c th truyn

theo mt hng, cn song cng ti mi thi im tn hiu c th truyn theo c 2 hng.

13. KB, kB, Kb, kb

14. Ti sao RS-485 truyn xa hn RS-232?

- Trit nhiu tt hn

15. Mng AS-i c dng cho cp no?

- Sensor

16. Mng Profibus DP dng cho level no?

- Machine. (Profibus PA dng nhiu level Process)

17. Mng CANopen dng cho level no?

LONGTypewriterv truyn vi sai

- Machine

18. Mng DeviceNet dng cho level no?

- Machine

19. Mng Profibus FMS dng cho level no?

- Process

20. Broadcast v Unicast (master slave)

- Broadcast: truyn thng cho tt c cc device trong mng khng cn feedback

- Unicast: truyn thng cho 1 device

21. Trong ch broadcast (master - slave) c answer t slave khng (RS-485)?

- Khng c. Nu c s xy ra ng

22. Ch broadcast c p dng cho php c khng (RS-485, Master c slave)?

- Khng.

23. Vn kh khn nht theo bn trong truyn thng l g. Vn thuc layer

no?

- Gii quyt ng , thuc layer 2 (data link)

24. Bin tn c xp vo cp no trong h thng tch hp?

LONGTypewriterv c phi c tr li, m tr li s xy ra ng

- Machine

25. Distributed I/O c xp vo cp no trong h thng tch hp?

- Machine

26. SCADA c xp vo cp no trong h thng tch hp?

- Process

27. Nu ra 5 c ch media access

Master-Slave, Token ring, Time Division Access (TDA), Random Access (bao gm 2 c

ch nh l CSMA-CA v CSMA-CD )

28. Nu ra 4 protocols lm vic theo Master/Slave

Asi, Profibus, Modbus, CANopen, DeviceNet

29. Nu ra 4 levels in an enterprise information automation system. (h thng t ng

ha trong CN)

LONGTypewritermanagement (qun l gim st)

LONGTypewriter

LONGTypewriterhay

30. Interbus s dng RS-485? RS-232 or RS-422

RS422

31. Profibus DP s dng RS-485, RS-232 or RS-422

RS485

32. Chiu di ti a ca mng RS-232?

33. Chiu di ti a ca mng RS-485?

1000 1200m

34. Ni rng: CANopen s dng Master-Slave trong trao i d liu, ng/sai?

Sai. Ch trong ch cu hnh (configuration)

35. Modbus Plus s dng c ch truy cp bus nh th no?

Token ring

36. Ethernet s dng CSMA-CD hay CSMA-CA

CSMA-CD

37. CANopen s dng CSMA-CD hay CSMA-CA

CSMA-CA

38. Profibus DP (multi master) s dng c ch truy cp bus nh th no?

Random

39. Vit ra 5 network topology

Ring, star, tree, grid, bus,

PROFIBUS 40. C bao nhiu loi Profibus

3 loi: Profibus FMS, Profibus DP v Profibus PA

41. Ti sao Profibus FMS khng pht trin tip tc ?

Kh phc tp v t. do sau mt vi nm s dng, ngi ta pht trin ln Profibus DP

42. Profibus DP dng nhng level no ca OSI?

Layer 1 v 2

43. MBP l g

MBP (Manchester Bus Powered) l 1 chun giao tip c s dng trong Profibus PA.

hiu n gin, thay v Profibus DP s dng chun RS 485 hay cp quang th Profibus PA dng

chun MBP.

44. File GSD l g

GSD l file cu hnh cho Profibus DP V0 (page 19).

LONGTypewriterPROFIBUS DP: L giao din chun trao i d liu gia cc trm iu khin (dng PLC, DP master) v cc thit b hin trng (DP slave). Hnh 3 l v d v mt h thng mng dng PROFIBUS DP. Tc ti a ca PROFIBUS DP l 12Mbit/giy. PROFIBUS DP s dng RS485 hoc si quang l ch yuPROFIBUS FMS (Fieldbus Message Specification): c s dng trao i thng tin gia cc b iu khin (PLC) v cc my tnh cp iu khin. Mt trong nhng u im ca FMS l d liu c truyn i c cu trc khng ph thuc vo thit b m n pht i (dng trung ho), sau n c chuyn i thnh dng c th ca thit b tip nhn n. iu c ngha l, n c th ni chuyn vi tt c thit b hiu c FMS. Trong chng trnh ca ngi s dng, ta c th dng cc ngn ng tng ng nh STL hay C cho cc ng dng chy trn PC.C PROFIBUS DP v PROFIBUS FMS u dng chung mt cng ngh truyn dn v k thut truy cp mng, v th chng c th hot ng ng thi.PROFIBUS PA c thit k chuyn dng cho iu khin qu trnh v cho php cc thit b o v cc thit b chp hnh c th ni ghp vi mng iu khin chung thm ch trong iu kin mi trng nguy him. PROFIBUS PA tun theo tiu chun IEC 61158-2 (truyn ng b), ngha l cu hnh an ton v cc thit b hin trng nhn ngun nui thng qua ng mng. PROFIBUS-PA c th c cu trc hnh tuyn, hnh cy hay hnh sao. S trm trn mt nhnh mng ph thuc vo ngun nui, dng tiu th ca cc trm, dng cp c s dng v khong cch ca chng. Tc truyn ca PROFIBUS PA l 31.25 kbit/giy. N c th hot ng vi cu hnh c d phng bng cch nhn i ng mng. Mt tuyn PROFIBUS PA c th ni vi tuyn PROFIBUS DP thng qua b chuyn i DP/PA link

LONGTypewriter

LONGTypewriter

h tr cho vic cu hnh thit b, cc nh cung cp Profibus h tr nhng file GSD

(General Station Description). Nhng file ny c th c c bi cng c cu hnh ly thng

tin thit b trong mng.

45. C nhng version no ca Profibus DP

3 version: Profibus DP V0, V1, V2

46. Coupler l g

- The DP/DP Coupler allows you to 'couple' two PROFIBUS DP Masters together as the

masters normally only talk to their slaves.. The DP/DP coupler acts as a slave for each DP

Master and then they can exchange data between each other (ci ny search trn mng)

- DP/PA coupler chuyn i d liu t bt ng b (11 bits/character) sang ng b

(8bits/character). Chuyn i t l bit t 45.45kbit/s sang 31.35 kbit/s. DP/PA coupler khng cn

cu hnh v c th dc pht hin bi station, power devices, current limit.

- DP/PA coupler c 2 ch : khng chng chy (ti a 31 devices) v chng chy (ti a

10 devices)

47. Class 1 v Class 2 ca Profibus DP l g?

Class 1 v 2 u l master.

Master class 1: trao i vi cc trm(slaves) theo chu k nht nh

LONGTypewriter

Master class 2: lp trnh v ci t cu hnh h thng

48. IEC 61158-2 v IEC 1158-2

49. S khc nhau gia Profibus DP-V0, DP-V1 v DP-V2

50. Proifibus PA thch hp vi chun IEC no?

IEC 1158-2

51. C bao nhiu max Slave trong mng Profibus PA (cu ny cha chc chn)

127

52. Profibus PA ch chng chy h tr ti a bao nhiu thit b ?

10 thit b

53. Profibus FMS giao tip qua loi cable no

54. Li ch ca Profibus

- tc cao, t ng ha trong nh my kh n gin

- Drives and motor control

- phc v iu khin qu trnh

- hot ng c trong mi trng d chy n

- c h thng an ton

55. Profibus no c s dng rng ri

Profibus DP

56. Profibus PA bn cht l t trn Profibus no

Pht trin da trn Profibus DP

57. Ti sao PA c s dng trong vn an ton

58. Nhc im ca Profibus DP

59. Ti sao Profinet c s dng rng ri

60. Kim soat truy cp bus l g

61. Tc truyn ph thuc nh th no vo chiu di truyn thng

62. S ni (6, 3, 8, 5) (8, 3)

63. Tng s node ti a k c master l bao nhiu trong Profibus PD

64. Mi segment ti a c bao nhiu thit b

65. Khung truyn c nh Profibus ti a bao nhiu byte

66. DP-V0 l g (xem cu 49)

67. DP-V1 l g (xem cu 49)

68. DP-V2 l g (xem cu 49)

69. Master lp 2 l g (xem cu 47)

70. Gii thch t cm vo l chy ca GSD files

Xem cu 44.

71. Tc ti a ca Profibus PA

31.25Kbps

72. S ging nhau PA v DP

CSMA-CD

73. ALOHA dng cho bao nhiu node ?

2 node

74. S pht trin ca CSMA

Aloha CSMA CSMA/CD CSMA/CA

75. Thut ton back-off

76. R*51.2us, R c tnh nh th no

Xem cu 75

77. Gii hn ca ng truyn trong CSMA-CD l bao nhiu?

2500 mt

78. Khuyt im khng u tin trong CSMA-CD l g

Thng th my c d liu ln hn s ln t (dominate) my c t d liu hn.

CSMA-CA

79. CSMA-CA dng vt tri trong media no?

c dng ph bin trong giao tip c dy, nhng dng vt tri trong giao tip khng

dy (WLAN)

80. RTS v CTS l g. Bao nhiu bit ?

RTS (request to send) 20 bytes, CTS (clear to send) 14 bytes

81. C nhng loi Persistent no trong CSMA?

CSMA gm 2 loi: non-persistent v persistent. Trong Persistent gm c: 1-Persistent,

P-Persistent v O-Persistent.

82. P Persistent l g

83. Non Persistent l g

84. So snh gia CSMA-CA v CSMA-CD

- CSMA ng tin hn CSMA-CD

- CSMA c thm phn RTS V CTS nn gim thi gian truyn d liu

85. IEEE 802.11

Nu dng chun ny: th phi c yu cu RTS v CTS, cn nu ko dng chun ny th n

pass qua chng. (ko dng RTS v CTS)

FOUNDATION FIELDBUS 86. Foundation Fielbus dng lp no

3 lp: Physical Layer, Data Link Layer, Application Layer

87. Lp ng dng ca Foundation Fielbus l g?

- Lp ng dng gm FMS v FAS.

FMS thc hin cc dch v Fieldbus Message Specification ging nh trong Profibus

FAS (Fieldbus Access Sublayer) c chc nng lin kt FMS vi lp lin kt d liu

88. C nhng topology no trong Foundation Fieldbus ?

- ng trc/ ng nhnh

- Daisy-chain

- Hnh sao.

- im-im

89. S trm cho php trong mi Segment ca Foundation Fieldbus ?

Khng qu 32 trm nu khng dng b lp Repeater

C th s dng ti a 4 b lp, khong cch ng truyn c th tng ln 9500m v s

trm l 240

90. TDMA l g ?

Time Division Multiple Access, a truy cp phn chia thi gian

91. C nhng kiu c ch trao i no gia cc trm trong Foundation Fieldbus (hi-level)

?

Master/Slave; Token Passing; TDMA

92. LAS trong Foundation Fieldbus l g ?

Link Active Scheduler, ng vai tr l trm ch phn chia v kim sot quyn truy cp

vo ton b mng

93. Chiu di ti a mi message l bao nhiu?

Ti a 251 bytes

94. C ch Report trong Foundation Fieldbus ?

Giao tip khng lp lch, thng s dng trong cc thng bo ng

95. C nhng khi no trong Foundation Fieldbus ?

C 3 khi c bn: khi ti nguyn (Resource Block); khi chc nng (Fucntion Block) v

khi bin i (Tranducer Block)

96. D liu o lng s cp nm trong khi no ?

Khi chc nng

97. Khi transducer trong FF l g

Khi bin i c nhim v tch cc khi chc nng khi s ph thuc vo c ch vo ra

vt l c th. Mi khi bin i cha cc thng tin chi tit nh ngy gi hiu chnh, kiu cm

bin hoc c ch chp hnh.

AS-I NETWORK

98. AS-I vit tt t u ?

Actuator Sensor Interface (mng giao tip cho cp thp nht trong h thng t ng ha

gm cc sensors v actuator, kt ni chng vi cc cp iu khin cao hn.)

99. AS-I t nm no ?

1990

100.Cc device trong AS-i c th kt ni nh th no ?

101. AS-I topology

Star, tree, line, branch lines

102. C nhng loi cable no trong AS-i ?

Cp trn, cp dp

103. Chiu di ti a ca mi Segment l bao nhiu (AS-i) ?

100m (khng c repeater) v 300m (c repeater)

104. S node trn mi Segment ?

31 slaves-1 master ch chun; 62 slaves-1 master ch m rng

105. Chu k quyt trong ch chun ti a l bao nhiu ?

Ti a 5ms ch chun v 10ms ch m rng.

106. Chiu di ti a mi frame AS-I l bao nhiu Master Slave (Master gi cho Slave)

14 bits. Trong : 5 bit a ch slave v 5 bit thng tin

107. Chiu di ti a mi frame AS-I l bao nhiu Slave Master (Slave gi tr li

Master) ?

7 bits. Trong : 4 bit thng tin.

108. Tc c nh ca AS-I l bao nhiu

Tc truyn c nh l 167 kbit/s

109. Control bit AS-I ?

0- truyn data, 1- truyn lnh

110.Thng tin AS-i cha bao nhiu bit ?

Ty vo chiu frame gi t Master Slave (5 bits) hay t Slave Master (4 bits)

ETHERNET-IP 111. CIP (Common Industrial Protocol) p dng cho nhng mng no ?

CompoNet, DeviceNet, ControlNet, Ethernet/IP

112. S khc nhau gia UDP v TCP ?

Truyn tng minh v khng tng minh (cn v khng cn phn hi)

113. IP l g ?

Industrial Protocol: giao thc cng nghip

114. S khc nhau gia TCP/IP vi Ethernet/IP

115. Topology

Nhiu: ring, tree, star

HART 116.HART s dng Analog hay digital

C c digital v analog. Tn hiu c to ra u pht v thu v u thu l digital

(mt chui 11 bits) , cn tn hiu truyn i trn ng truyn l tn hiu analog (ban u l dng,

sau c chuyn sang tn hiu p)

117. Wireless HART gateway c th h tr cc protocol khc khng

118. Nhng thnh phn trong mng HART v Wireless HART

119. Mi message ca Wireless Hart di bao nhiu

120. Network Security l g

121. Network ID, Network key, Security Key

122. Cc cch b tr cc Node trong Wireless Hart

123. Mi frame cha bao nhiu slot time

124. Superframe v Frame

125. HART l Analog hay digital (trng cu 116)

126. D liu ca hart c bao nhiu bit ?

11 bit

127. Mc 0 v mc 1 c tn s tng ng bao nhiu ?

2200Hz v 1200Hz

128. Cc layer s dng trong hart ?

Layer 1,2,7

129. Lp vt l s dng tiu chun g ?

130. Topology

im - im, song song

131. Cc thnh phn ca khung truyn

CP QUANG 132. Multi mode l g ?

Tia sng truyn theo nhiu hng khc nhau: zigzag, ng cong

133. Single mode l g ?

Tia sng truyn theo 1 ng thng

134. So snh tc gia single mode va multimode

Single > Multi (c v tc truyn dn v khong cch kt ni)

135. C bao nhiu loi trong multimode ?

2 loi: Step-Index v Graded-Index

136. u im ca cp quang

- Trng lng nh, kch thc nh (nh hn cp ng)

- Dung lng ti cao hn (v c th b nhiu s quang li vi nhau thnh 1 b cho php nhiu knh i qua cp quang)

- Suy gim tn hiu t (so vi cp ng)

- t b nhiu

- Tiu th t nng lng

- Khng chy (do ko c in truyn qua cp quang)

137.Nhc im ca cp quang

- Ni cp kh khn (si cp phi thng, hn ch un cong do si quang lm bng thy

tinh)

- Chi ph cao

138. Single mode s dng LED hay laser

Laser

139. Cu to cc lp chnh ca Cp quang

Core (li) Cladding (lp phn x nh sng) Buffer coating (lp ph bo v bn ngoi = PVC)

140. Hai loi cp quang ph bin (theo vt liu)

Thy tinh hoc plastic (nha)

141. Phn loi cp quang theo mode

Single mode v Multi mode

142. Cc bc sng ca multimode

850nm v 1300nm

143. iu kin tia sng phn x vi nhng gc lch u n

144. H s khc x trong Singlemode

H s khc x trong Single mode cng thay i t Core (li) ra Gladding (lp phn x

nh sng) ging nh Multi mode nhng t hn.

DNP3 145. DNP3 ng dng trong telemetry hay nh my

146. S h tr Timestamp trong DNP3

147. DNP3 trc y l g

148. DNP3 c s dng Ethernet khng

149. SEQ l g

150. File XML dng trong DNP3