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PRODUCT SPECIFICATION DVP Series PLC Communication Protocol V1.0 DELTA ELECTRONICS, INC. Responsible Person Signature Date Written By ࣥପᏙ Checked By ାྱឝ/ޙঊᘦ Application Approved By ׆ঊཱུ ፉم֮

Item Change Notes 1 รԫठ࿇۩ PLC ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ᒳᇆΚᒳᇆΚᒳᇆΚᒳᇆΚC-PLC-A003 Date 7/1/2003 1

PLC ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ᒳᇆΚᒳᇆΚᒳᇆΚᒳᇆΚC-PLC-A003 ؾᙕ ԫΕʳ ១տ .......................................................................................................................... 3 ԲΕʳ ຌ᧯๵ᒤ ................................................................................................................... 3 ԿΕʳ ᖲ౨ .......................................................................................................................... 3 ؄Εʳ ຑᒵֱڤ ................................................................................................................... 4 նΕʳ ຏಛ௑ڤտฯΚ ........................................................................................................ 5 1. ຏಛᇷற࠰ࡳ ........................................................................................................ 5 2. ຏಛᇷற௑ڤ ........................................................................................................ 5 i. ii. ASCII Mode ................................................................................................... 5 RTU Mode ..................................................................................................... 6 3. ຏಛՠ܂ֱڤ ........................................................................................................ 6 4. ᙑᎄಛஒڃᚨ ........................................................................................................ 7 քΕʳ MODBUS ຏಛࡎח௑ڤΚ........................................................................................ 7 Function 01ΚRead Coil Status............................................................................. 8 Function 02ΚRead Input Status........................................................................... 9 Function 03ΚRead Holding Registers................................................................ 10 Function 05ΚForce Single Coil .......................................................................... 11 Function 06ΚPreset Single Register.................................................................. 12 Function 0FΚForce Multiple Coils...................................................................... 13 Function 10ΚPreset Multiple Register................................................................ 14 ԮΕʳ ໂု ........................................................................................................................ 15 ໂု 1ΚCRC ๵௑ .............................................................................................. 15 ໂု 2ΚException Code..................................................................................... 15 ໂု 3ΚDVP-PLC ຏಛցٙۯܿ ........................................................................ 16 2

ԫΕ១տ ء֫םᎅࣔ DVP-PLC ܂੡ൕጤ(Slave)ຏಛՑհຏಛ࠰ࡳΔࠉڼຏಛֱऄױژ࠷ PLC փຝցٙΔ༼ࠎ࿯׌ጤ(Master)ࢨԳᖲտ૿ፖ PLC ຑᒵֱऄհ೶ەΖ PLC ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ᒳᇆΚᒳᇆΚᒳᇆΚᒳᇆΚC-PLC-A003 ԲΕຌ᧯๵ᒤ ԿΕᖲ౨ PLC ীᇆ DVP-ES/EX/SS/EC DVP-EP DVP-EH ຌ᧯ठء V4.7(ܶ)אՂ V1.0(ܶ)אՂ V1.0(ܶ)אՂ A. ຏಛ๵ᒤ 1. ຏಛտ૿ PLC ীᇆ ຏಛտ૿ DVP-ES/EX/SS/EC V4.7(ܶ)אՂ V5.1(ܶ)אՂ DVP-EP/EH COM1ΚRS-232 COM2ΚRS-485 ԲᙇԫΔٍܛլױٵழࠌش COM1ΚRS-232 COM2ΚRS-485 ױٵழࠌش COM1ΚRS-232 COM2ΚRS-485/RS-232RS-422(ࠉឩך׬ۖࡳ) ױٵழࠌش 2. א MODBUS ASCII ᑓڤऱຏಛ࠰ࡳፖ؆੺ຏॾ 3. ຏಛ௑ڤ ES ߓ٨ Com port ೶ᑇ ຏಛຒ෷ ᇷற९৫ ٵۯցᛀ਷ᒘ ࿨ޔڗց९৫ ๻ࡳֱڤ COM1 COM2 9600 7bits 300~19200 bps 7~8bits Even parity Even/Odd parity 1 bit ࡐࡳ 3 1~2 bits D1120

PLC ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ᒳᇆΚᒳᇆΚᒳᇆΚᒳᇆΚC-PLC-A003 ES נᐗ๻ࡳଖ Com port Protocol ຏಛ࠰ࡳ COM1 COM2 9600, 7, E, 1 9600, 7, E, 1 EP/EH ऱຏಛՑڶࠟଡΔՀ૿א COM1ΕCOM2 ܂ᎅࣔΚ Com port ೶ᑇ ຏಛຒ෷ ᇷற९৫ ٵۯցᛀ਷ᒘ ࿨ޔڗց९৫ ๻ࡳֱڤ EP/EH נᐗ๻ࡳଖ Com port Protocol ຏಛ࠰ࡳ COM1 COM2 9600~115200 bps 300~115200 bps 7bits 7~8bits Even parity Even/Odd parity 1 bit WPL 1~2 bits D1120 COM1 COM2 9600, 7, E, 1 9600, 7, E, 1 ؄Εຑᒵֱڤ ຏಛՑ ຑ൷ֱऄ RS-232 ࠌشຑ൷ᒵ DVPACAB215, DVPACAB230 ࢨ DVPACAB2A30 ׌ጤؘႊࠠڶ RS-485 տ૿Δࠌشᠨ࿧ᒵΔࠠڶሶᠦ๯៿ጻለࠋ RS-485 RS-485 Master + - + - RS-485 DVP-PLC ڍ؀ຑᒵழΔ৬ᤜࠌش؆൷ึጤሽॴ ׌ጤؘႊࠠڶ RS-422 տ૿Δࠌش 2 යᠨ࿧ᒵΔࠠڶሶᠦ๯៿ጻለࠋ RS-422 RS-422 Master Tx+ Tx- Rx+ Rx- RS-422 DVP-PLC Rx+ Rx- Tx+ Tx- ڍ؀ຑᒵழΔ৬ᤜࠌش؆൷ึጤሽॴ 4

PLC ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ᒳᇆΚᒳᇆΚᒳᇆΚᒳᇆΚC-PLC-A003 նΕຏಛ௑ڤտฯΚ 1. ຏಛᇷற࠰ࡳΚMODBUS Protocol ADU ADDRESS FUNCTION DATA ERROR CHK PDU data bit start bit parity stop bit ቹԫ 2. ຏಛᇷற௑ڤΚ։੡ ASCII Mode ፖ RTU Mode i. ASCII Mode (൷Հࠐᇷறೈڶ௽ܑᎅࣔΔܡঞઃא ൷Հࠐᇷறೈڶ௽ܑᎅࣔΔܡঞઃא 16 ၞۯ।قၞۯ।قၞۯ।قၞۯ।ق) ൷Հࠐᇷறೈڶ௽ܑᎅࣔΔܡঞઃא ൷Հࠐᇷறೈڶ௽ܑᎅࣔΔܡঞઃא ASCII Mode ऱຏಛ௑ڤڕՀΚ STX Address Function 1 byte 1 byte 1 byte Data 1~32 bytes LRC End 1 byte 2 bytes ।௑ԫ ᅝᇷற૞ႚಬழΔೈԱ STX ፖ End ڗց؆ΔࠡᕉᇷறΔאԫଡڗց੡໢ۯΔലޢଡڗ ցऱছ؄ଡۯցፖ৵؄ଡۯցΔ᠏ངګ ASCII ᒘΔࠏڕΚ5A ऱڗցΔ༉᠏ངګ’5’ፖ’A’ࠟଡ ڗցΖࠡ᠏ང৵௑ڤڕՀΚ STX ADR high byte ADR low byte Function high byte Function low byte Data 1 high byte Data 1 low byte . Data N high byte Data N low byte LRC high byte LRC low byte End1 End2 ದࡨڗց “ : ” (3A) ຏಛۯܿ ຏಛࡎח รԫଡ BYTE ऱᇷற … ร N ଡ BYTE ऱᇷற ᙑᎄೠྒྷᛀ਷ᒘ CR (0DH) LF (0AH) ।௑Բ 5

PLC ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ᒳᇆΚᒳᇆΚᒳᇆΚᒳᇆΚC-PLC-A003 ᙑᎄೠྒྷᛀ਷ᒘආش LRCΰLongitudinal Redundancy CheckαೠᎄଖΔૠጩֱڤਢല ᇷறط।௑ԫऱ ADR ף᜔ࠩ LRCΔף᜔መ࿓ᅝխΔਢאڗց੡່՛໢ۯΔᅝף᜔መ࿓ᅝխΔ ڶၞۯขسழΔ࢙ฃൾၞۯଖΔ່৵ނף᜔ऱ࿨࣠࠷ 2 ऱᇖᑇ༉ਢ LRC ऱଖΖ ᒤࠏΚ STX Address Function Data1 Data2 Data3 Data4 LRC End 3A 01 03 04 01 00 01 0D 0A Address + Function + Data1 + Data2 + Data3 + Data4 = 01 + 03 + 04 + 01 + 00 + 01 = 0A ല 0A ऱଖ᠏ངګ 2 ऱᇖᑇΔ2 ऱᇖᑇ᠏ངֱڤΔਢ඿᠏ངऱᇷறޢԫଡ BIT ֘ٻ(0 ᧢ 1Δ 1 ᧢ 0)Δྥ৵٦ല֘ٻ৵ऱᇷற٦ף 1 ܛ൓ࠩ 2 ऱᇖᑇΔ0A ऱ 2 ᇖᑇ = F6 ii. RTU Mode RTU ऱຏಛ௑ڤڕՀΚ Address Function 1 byte 1 byte Data 1~32 bytes ।௑Կ CRC 2 bytes RTU ຏಛֱڤ޲ڶၲᙰ֗࿨ݠڗցΔޏආشழၴၴሶ९৫ࠐܒឰլٵႚಬᇷறऱၲᙰ ፖ࿨ݠΔֱࠡڤڕՀΚ ʳ ৞ץ ˄ʳ Њ3.5ʳ ڗց९৫ʳ ৞ץ 2ʳ ʳ ቹԲ طቹԫױ઎נࠟ࿝ᇷறႚಬᅝխΔ۟֟૞ၴሶ 3.5 ڗց९৫ழၴΔ൷گጤޢ൷گࠩԫଡ ڗցऱᇷற৵Δ༉ၲࡨૠழΔᅝૠழ၌መ 3.5 ڗց९৫ழၴழΔ༉ီ੡ڼ࿝ᇷறբᆖႚ ಬݙฅΔڗց९৫ழၴᄎڂ੡ႚᙁຒ৫լٵۖڶࢬլٵΖ RTU Mode ႚᙁᇷற௑ڤΔऴ൷ਢאڗցֱڤႚಬΔլᏁ٦ᇞګ ASCII ٦ႚಬΖ CRC ਢ RTU ೠྒྷᙑᎄऱֱڤΔආشऱ CRC ڍႈڤ௑ڤ੡ X16 + X15 + X2 + 1Δૠጩֱ ڤᓮ೶ᔹໂု 1Ζ 3. ຏಛՠ܂ֱڤΚආش MASTER/SLAVE ऱֱڤΔطԫ؀ MASTER ᖲᕴ࿇ಬ MODBUS ௑ڤऱᇷற࿯ SLAVEΔSLAVE ൷گࠩ MASTER ᇷற৵Δࠉᖕ MASTER ՀሒऱࡎחΔ ܂ઌኙᚨऱ೯܂ፖڃᚨΖMASTER ؘႊ࿛ SLAVE ܂ઌኙᚨऱڃᚨ৵Δթ౨٦ႚಬՀ ԫ࿝ຏಛᇷறΖ 6

PLC ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ՠ࿓ຝݾ๬֮ٙ ᒳᇆΚᒳᇆΚᒳᇆΚᒳᇆΚC-PLC-A003 4. ᙑᎄಛஒڃᚨΚૉႚԵ PLC ऱࡎח௑ڤڶᙑᎄΔঞ PLC ᄎല Function ຍ᥏ۯऱ MSB ๻ࡳ੡ 1Δྥ৵ല Function ᥏ۯऱՀԫ࿝ᇷறჄԵᙑᎄಛஒᒘ(Exception Code)Δ່৵ ႚಬנװΖ ࠏΚڇ ASCII Mode ՀΔࠌشࡎחᒘ 01 ᦰ࠷ X000~X017 ऱणኪ Field Name Example (Hex) Heading Slave Address Function Starting Address Hi Starting Address Lo Number of Points Hi Number of Points Lo Error Check ( LRC ) PLC ڃᚨΚ 3A 01 01 04 00 00 10 EA Field Name Example (Hex) Heading Slave Address Function Exception Code Error Check ( LRC ) 3A 01 81 02 7C ڂ੡ Address 0400 ኙ Function 01 ਢլٽऄऱΔࢬאڃᚨ Exception code = 0x02Δ׊ Function 01 ๯๻੡ 81ΰb7 ๯๻੡ 1αΔٍܛطڃᚨऱ Function code ऱ MSB ๯๻੡ 1 ।ق PLC ڃᚨ ERROR MESSAGEΔࠀ׊ط Exception code ױ൓वਢ۶ጟᙑᎄΔException code ᓮ೶ᔹໂု 2Ζ քΕMODBUS ຏಛࡎח௑ڤΚ ױشհࡎחᒘඖ૪ڕՀΚΰޢଡ device ऱ address, ᓮ೶ەໂု 3α Code Name Description 01 02 03 05 06 0F 10 Read Coil Status Read Input Status S, Y, M, T, C S, X, Y, M,T, C Read Holding Registers T, C, D Force Single Coil Preset Single Register Force Multiple Coils S, Y, M, T, C T, C, D S, Y, M, T, C Preset Multiple Register T, C, D 7

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