Delta DVP-ES2 User manual

www.deltaww.com
Digitized Automation for a Changing World
DVP-ES2 / EX2 / EC5 / SS2 / SA2 / SX2 / SE & TP
Operation Manual - Programming

DVP-ES2/EX2/SS2/SA2/SX2/SE&TP
Operation Manual
Programming
Revision History
Issue Description of Changes Date
1st The first edition is issued. 2010/02/26
2nd The second edition is issued. 2011/03/03
3rd
1. Chapter 2.8 M Relay: Add M1037, M1119,
M1182, M1308, M1346, and M1356, and update
the description of the functions of
M1055~M1057and M1183.
2. Chapter 2.13 Special Data Register: Add
D1037, D1312, D1354, and D1900~D1931, and
modify the attributes of the latched functions of
D1062, D1114, D1115, and D1118.
3. Chapter 2.16 Applications of Special M Relays
and D Registers: Update the description of the
functions of RTCs; add M1037, D1037 (Enable
SPD function), M1119 (Enable 2-speed output
function of DDRVI instruction), M1308, D1312
(Output specified pulses or seek Z phase signal
when zero point is achieved), and M1346
(Output clear signals when ZRN is completed);
Easy PLC Link is changed to PLC Link, and the
description is added.
4. Chapter 3.1 Basic Instructions (without API
numbers) and Chapter 3.2 Explanations to Basic
Instructions: Add NP and PN instructions, and
add Chapter 3.7 Numerical List of Instructions
(in alphabetic order)
5. Chapter 3.6 Numerical List of Instructions and
2011/09/29

Issue Description of Changes Date
Chapter 3.8 Detailed Instruction Explanation:
Increase explanations of DSPA instruction, and
add floating-point contact type comparison
instructions FLD=, FLD>, FLD<, FLD<>, FLD<=,
FLD>=, FAND=, FAND>, FAND<, FAND<>,
FAND<=, FAND>=, FOR=, FOR>, FOR<, FOR<>,
FOR<=, FOR>=; add the supplementary
description of PLSR instruction and the
description of K11~K19 in DTM instruction
mode; update the description of API166
instruction.
4th
1. SE is added in the title of the manual.
2. Chapter 2.16: The default value in D1062 is K10.
3. API 15 in Chapter 3: The contents about S<D are
deleted in program example 3.
4. API 148 and API 149 are added in Chapter 3.
5. The information related to DVP-SE is added.
6. The information related to DVP32ES-C is added.
7.
The descriptions of the models are added in the
contents.
8. Appendix A is added.
2012/07/01
5th
1. API 113 is added.
2. API150 is updated.
3. Chapter 7 is updated.
2012/09/01
6th
1. M1148, M1580, M1581, M1584, M1585, M1182,
and M1183 are added to Chapter 2.
2. Chapter 3 is updated. API53, API 156, API 159,
API69, API88, API143, API150, API155, API258,
and API296-313 are added.
3. The description of API 178 is updated.
4. The description of the input/output mapping
areas for DVP-ES2-C as a slave station is added
to section 7.1.2.
5. C232, C249, and C250 are deleted from the
description of the SE memory Map.
6. Appendix B is added.
2013/02/20

Issue Description of Changes Date
7. Appendix C is added.
7th
1. The timer interrupts I805~I899 are added to
Chapter2. The special auxiliary relays
M1357~M1359, M1590, M1598, and M1599 are
added to the table of special auxiliary relays. The
descriptions of D1027 and D9998 in the table of
special data registers are updated.
D1056~D1059, D1150~D1153, D1246~D1247,
and D9999 are added to the table of special data
registers. The definitions of the pins in COM1 are
added to the description of M1035. The new
special auxiliary relays in the table of special
data registers and the new special data registers
in the table of special data registers are
described in section 2.16.
2. API114, API115, API145, and API295 are added
to Chapter 3. The descriptions of API17, API22,
API23, API59, API78, API80, API81, API83,
API101~API106, API112-API113, API150,
API166, API179, and API197 are updated.
3. The information about M1040 is added to Chapter
5.
4. The description of the error code C450 is added
to Chapter 6.
5. In Appendix C, the information about TP04P
series text panels is changed to the information
about TP series text panels.
6. Appendix D is added. It introduces the current
consumption of slim PLCs/extension modules.
2014/07/04
8th
1. In section B.1, the number of RTU modules onto
which a DVP-SE series PLC can be mapped is
updated.
2. In section B.2.2, the descriptions of
CR#20~CR#86 are updated.
3. In section B.2.3, the descriptions of
CR#17~CR#24 are updated, the description of
2014/08/29

Issue Description of Changes Date
CR#27 is added, and the descriptions of
CR#87~CR103 are updated.
4. In section B.2.4, the descriptions of CR#0 and
CR#20~CR#26 are updated.
5. Section B.6 is added.
9th
1. Chapter 2: add Ethernet descriptions in section
2.1, update M1119, M1334, M1338,
M1700~M1731 in section 2.8, updated
software/hardware high speed counter
descriptions in section 2.12, add D1021
descriptions in section 2.13, add interrupt
descriptions in section 2.15, add D1021, M1334,
M1335 and update M1119 and PLC link
descriptions in section 2.16.
2. Chapter 3: update instruction list. Update
API113, API15, API17, API51, API59, API68,
API76, API80, API123, API150, API158, API159,
API206, and add new instruction descriptions
API337.
3. Chapter 4: update Modbus address for SE series
in section 4.4.
4. Chapter 6: delete error codes C430, C441, and
C442. Add new error codes C430, C437 and C438
in section 6.2.
5. Appendix A: add descriptions of the USB
installation in Windows 10.
6. Appendix B: add descriptions of ES2-E series.
7. Appendix C: update descriptions of program
capacity for TP series.
8. Appendix D: add descriptions for
28SS2/28SA2/26SE.
2017/04/26
10th
1. Section 2.1: updated file register contents.
2. Section 2.2-2.4: updated external inputs X and Y
3. Section 2.8: added M1019, M1145,
M1196-M1198, M1614-M1675 and updated
M1119, M1183, M1334, M1335, and 1700-1731.
2018/10/30

Issue Description of Changes Date
4. Section 2.12: updated supporting modules for
hardware high-speed counters.
5. Section 2.13: updated D1021 and added
D1175-D1177, D1227-D1231, D1400-D1403 and
D6000-D6063.
6. Section 2.15: updated timer interrupt in API05.
7. Section 2.16: added M1019 as well as 1145 and
update D1020, D1021, M1119, PLC Link, M1334,
M1335.
8. Section 3.5: updated index register E and F.
9. Section 3.6: added API315, API316,
API328-API336, API338-API340 and API342.
10.Section 3.8: updated API50, API53-API59,
API68, API80, API85, API86, API113, API145,
API148, API149, API158, API159, API198 and
API337 and add API315, API316,
API328-API336, API338-API340, API342.
11.Section 7.1.1: updated maximum number of PDO
supported and updated standard Delta cable
model names.
12.Appendix A.1: updated installation instruction for
Windows 7.
13.Appendix B.1: updated Ethernet function.
14.Appendix B.5: updated object list.
15.Appendix C: updated D1114 and D1115.
16.Appendix C.4.3: TP04P-08TP1R does not support
high-speed inputs.
17.Appendix E: added a new appendix for slim-type
special modules.
18.Appendix F: added a new appendix for slim-type
PLC specifications.
11th
1. Section 2.4: updated 32bit high-speed count
up/down hardware specification for SE series
PLC.
2. Section 2.8: updated M1037, M1113, M1145,
M1190-M1198, M1334, M1335, M1357-M1359,
M1620-M1623, and M1672-M1675. Added M1077,
M1116, M1117, M1550, M1551, and M1582.
2021.11.15

Issue Description of Changes Date
3. Section 2.12: updated the software high speed
counters and the maximum frequency of
hardware high speed counters C24 and C250.
4. Section 2.13: updated D1021, D1037, D1038,
D1056-D1059, D1246, and D1247. Added D1110
and D1111.
5. Section 2.16: updated the following contents:
M1077 for real-time clock, D1021 for adjustment
on input terminal response time, M1033 for
output state latched in STOP mode, COM2 in
COM port function, the availability of M1037 and
D1037 for Enable SPD function, the availability of
D1038 for communication response delay
function, M1119 for enable 2-speed output
function of DDRVI and DDRVA instructions,
D1320 to D1327 for ID of right side modules on
ES2/EX2/SS2/SA2/SX2/SE, D1386 to D1393 for
ID of left side modules on SA2/SX2/SE, M1182
and D9800 to D9879 for Mapping function of
SA2/SX2/SE for left-side high-speed special
modules, M1183 and D9900 to D9979 for Mapping
function for right-side high-speed special
modules, added state codes of DVP02PU-E2,
M1334 and M1335 for executing API59,
PLSR/DPLSR instructions for ramp-down when
the conditional contacts are closed, the
availability of M1019 for if the PLC detects that
the external 24V voltage is unstable, the error
LED flashes, and the availability of M1145 for
read MAC address from the left side network
module EN01.
6. Chapter 3: updated API50, API51, API53, API54,
API55, API57, API58, API59, API68, API78,
API79, API80, API87, API88, API113, API148,
API149, API158, API159, API207,
API175-API280, API315, API337, and API340.
Added API343-API354.
7. Section 3.2: updated the instructions OUT, SET,
and RST.
8. Section 4.1: updated communication baud rate.
Section 4.4: updated PLC device address.
9. Section 5.3: updated the contents of Repeated
Usage of Output Coil.
10. Section 6.1: updated the contents of Common
Problems and Solutions.
11. Section 6.2: updated the error codes C407, and

Issue Description of Changes Date
C430 to C438. Added new error codes C41C,
C421 to C426, C451 to C453, and C461 to C465
12. Section 6.3: added error code 0E1C for device
D1067.
13. Appendix A: added section A.4 Notes on
Utilizing USB communication.
14. Appendix B: updated the descriptions for
CR#26, and CR#88 to CR#93 in sections from
B.2.2 to B.2.4.
15. Appendix C: updated the relay timer
specification, counter C251 specification and
serial ports specification in section C.1.
Updated D1000 and D1022 in section C.2.
Added C.2.1 PLC CPU Built-in Inputs and
Outputs. Added C.5 Definitions of TP04P
Communication Ports.
16. Appendix D: updated the contents in D.1.1 to
D.1.4.
12th
1. Section 2.8: updated M1084, M1356,
M1360-M1439, M1582, and M1700-M1731. Added
M1283.
2. Section 2.13: updated D1123, D1168,
D1355-D1370, and D1415-D1991. Added D1248,
D1254, D1385.
3. Section 2.16: updat
ed Delta communication
cable, PLC LINK description and added a new
function group, Check the input/output points of
the digital extension module or number of the
special modules when power-on.
4. Chapter 3: updated K33 and K36 in DTM
instruction (API68). Added descriptions as well
as examples for M1263 and updated D1123, and
D1168 in RS instruction (API80). Added new
communication mode (S2) in ETHRS instruction
(API 337). Updated the supporting firmware
version of DVP-SS2 in $MOV (API343).
2022/3/22
13th
1. Added notes on the maximum frequency of
various input counters for
the following series,
ES2, 12SA2, SX2, SS2, 12SE, 26SE, and 28SA2
in section 2.12.
2.
Categorized the same groups of the instructions
in the same sections in Chapter 3.
3. Updated the following instructions API113,
API156, API158, API315, API337, and
API344-API354 in Chapter 3.
4. Updated the general specification from slim type
2022/08/19

Issue Description of Changes Date
PLC CPU to ES2 and EX2 series PLC CPU in
section F1, added the general specification for
SA2, SS2, SX2 and SE series PLC CPU in section
F2 and added the general specification for TP
series PLC CPU in section F3.
14th
1. Added
EC5 series product information in section
2.1 ES2/EX2/EC5 Memory Map.
2. Updated
the contents in the specification of real
time clock and special
I/O modules in sections
2.2, 2.3 and 2.4.
3. Updated the followings in section 2.8: M1030,
M1037, M1058, M1070, M1071, M1077, M1079,
M1083, M1084, M1103, M1105, M1106, M1109,
M1111, M1116, M1117, M1133, M1134, M1136,
M1148, M1156, M1157, M1158, M1159, M1181,
M1183, M1190-M1193, M1257, M1310, M1311,
M1316-M1320, M1348, M1349,M1357-M1359,
M1525, M1539, M1541, M1580-M1585, M1598,
M1599, M1672, M1673, M1675, and M1700-
M1731. Added the followings in sect9ion 2.8:
M1133, M1134, M1310, M1311, M1321, M1322,
M1520, M1521, M1526-M1527, M1530-M1533,
M1536, M1537, M1542, M1543, M1576, M1577,
M1586- M1589, M1604-M1607, M1676 and
M1677.
4. Updated contents of Note for Applicable Software
High Speed Counter and Hardware High Speed
Counters in section 2.12.
5. Updated the followings in section 2.13: D1002,
D1003, D1023, D1026, D1027, D1032, D1033,
D1037, D1056-D1059, D1062, D1109,
D1110-D1118, D1135, D1136, D1140, D1169,
D1232-D1235, D1246-D1248, D1252-D1255,
D1320-D1327, D1338, D1339, D1385,
D1900-1931, D6000-D6063, and D9900-D9999.
Added the followings in section 2.13: D1341,
D1342, D1350, D1351, D1375-D1382,
D1410-D1413, and D1988-D1991.
6. Added EC5 Series production information in the
following Function Groups: Program Capacity,
Communication Response Delay, Enable 2-speed
output function of DDRVI/DDRVA instruction, PLC
Link, When the conditional contacts are closed,
execute the ramp-down on the outputs and
updated Function Group: ID of left side modules
on SA2/SX2/SE in section 2.16.
2023/02/10

Issue Description of Changes Date
7. Added EC5 Series product information in
sections from 3.1 to 3.5.
8. Added EC5 Series as an applicable model and
updated the following instruction in section 3.6
API50, API53-API59, API143, API155-API159,
API340; added output points for high speed
instructions in section 3.6.6.1; added output pints
for positioning instructions in section 3.6.14.1.
9. Added EC5 Series product information in
chapters 4 and 5.
10.Added EC5 Series general specifications in
section F.3. Updated other specifications for
other series in Appendix F.
15th
1. Updated M1262 in section 2.8.
2. Updated D1988, D1989, D1990, D1991 in section
2.13.
3. Updated COM port information in section 2.16.
4. Updated the information of applicable modules
for basic instructions in section 3.2.
5. Updated the information of applicable modules
for interrupts in section 3.4.
6. Updated the example 2 in APII02, the explanation
#7 in API106, the example in API12, the
applicable modules in API343, the parameter
explanation in API68,the A2 wiring in API155, the
special M for EC5 in API156-API159, the
applicable modules in API195 in section 3.6
7. Updated the default communication settings for
all COM ports in section 4.1.
8. Updated the error LED information and added low
voltage handling process in Chapter 6.
9. Added an example of setting up the
communication in Appendix C.
10.Updated the current consumption information for
DVP01PU-S, DT01-S, 02TUR-S, DNET-SL, as
well as EN01-SL and added current consumption
information for new modules DVP08SM10N,
02TKL-S, 02TKN-S, 02TKR-S, 02PU-SL,
PF02-SL, SCM12-SL and SCM52-SL in Appendix
D.
11.Updated the specification for EC5 in section F.3.
2023/12/21

i
DVP-ES2/EX2/EC5/SS2/SA2/SX2/SE&TP
Operation Manual Programming
Contents
1 PLC Concepts
1.1 PLC Scan Method.....................................................................................1-2
1.2 Current Flow..............................................................................................1-3
1.3 NO Contact, NC Contact...........................................................................1-3
1.4 PLC Registers and Relays ........................................................................1-3
1.5 Ladder Logic Symbols...............................................................................1-3
1.5.1 Creating a PLC Ladder Program.....................................................1-5
1.5.2 LD / LDI (Load NO contact / Load NC contact) ...............................1-6
1.5.3 LDP / LDF (Load Rising edge trigger/ Load Falling edge trigger)....1-6
1.5.4 AND / ANI (Connect NO contact in series / Connect NC contact in
series) .............................................................................................1-6
1.5.5 ANDP / ANDF (Connect Rising edge in series/ Connect Falling edge
in series)..........................................................................................1-6
1.5.6 OR / ORI (Connect NO contact in parallel / Connect NC contact in
parallel)............................................................................................1-6
1.5.7 ORP / ORF (Connect Rising edge in parallel/ Connect Falling edge in
parallel)............................................................................................1-6
1.5.8 ANB (Connect block in series).........................................................1-6
1.5.9 ORB (Connect block in parallel) ......................................................1-7
1.5.10 MPS / MRD / MPP (Branch instructions).........................................1-7
1.5.11 STL (Step Ladder Programming).....................................................1-7
1.5.12 RET (Return)...................................................................................1-8
1.6 Conversion between Ladder Diagram and Instruction List Mode..............1-9
1.7 Fuzzy Syntax...........................................................................................1-10
1.8 Correcting Ladder Diagram.....................................................................1-11
1.9 Basic Program Design Examples............................................................1-13
2Programming Concepts
2.1 ES2/EX2/EC5 Memory Map......................................................................2-2
2.2 SS2 Memory Map......................................................................................2-5
2.3 SA2/SX2 Memory Map..............................................................................2-7
2.4 SE Memory Map......................................................................................2-10
2.5 Status and Allocation of Latched Memory...............................................2-12
2.6 PLC Bits, Nibbles, Bytes, Words, etc.......................................................2-13
2.7 Binary, Octal, Decimal, BCD, Hex...........................................................2-13
2.8 M Relay...................................................................................................2-15
2.9 S Relay....................................................................................................2-29
2.10 T (Timer)..................................................................................................2-30
2.11 C (Counter)..............................................................................................2-31
2.12 High-speed Counters...............................................................................2-33
2.13 Special Data Register..............................................................................2-38

ii
2.14 E, F Index Registers................................................................................2-52
2.15 Nest Level Pointer [N], Pointer [P], Interrupt Pointer [I]...........................2-53
2.16 Applications of Special M Relays and D Registers..................................2-56
3 Instruction Set
3.1 Basic Instructions (without API numbers)..................................................3-3
3.2 Explanations to Basic Instructions.............................................................3-4
3.3 Pointers...................................................................................................3-20
3.4 Interrupt Pointers.....................................................................................3-21
3.5 Application Programming Instructions.....................................................3-22
3.6 Detailed Instruction Explanation..............................................................3-32
3.6.1 Loop Control Instructions ..............................................................3-32
3.6.2 Transmission Comparison Instructions.........................................3-51
3.6.3 Four Arithmetic Operations Instructions........................................3-74
3.6.4 Rotation and Displacement Instructions........................................3-96
3.6.5 Data Processing Instructions.......................................................3-108
3.6.6 High Speed Processing Instructions ...........................................3-125
3.6.7 Handy Instrucitons ......................................................................3-172
3.6.8 External I/O Display Instrucitons.................................................3-228
3.6.9 Serial I/O Instrucitons..................................................................3-245
3.6.10 Basic Instructions........................................................................3-309
3.6.11 Communication Instructions........................................................3-323
3.6.12 Floating Point Operation Instructions..........................................3-405
3.6.13 Additional Instructions.................................................................3-437
3.6.14 Positioning Control Instructions...................................................3-471
3.6.15 Real Time Calendar Instructions.................................................3-524
3.6.16 Gray Code Instructions ...............................................................3-535
3.6.17 Matrix Operation Instructions ......................................................3-538
3.6.18 Contact Type Logic Operation Instructions.................................3-556
3.6.19 Contact Type Comparison Instructions.......................................3-560
3.6.20 Specific Bit Control Instructions...................................................3-588
3.6.21 Floating-Point Contact Type Comparison Instructions................3-598
3.6.22 Delta Special CANopen Communication Instructions .................3-602
3.6.23 Module Instructions.....................................................................3-659
4 Communications
4.1 Communication Ports...............................................................................4-2
4.2 Communication Protocol ASCII mode......................................................4-3
4.2.1 ADR (Communication Address)......................................................4-3
4.2.2 CMD (Command code) and DATA..................................................4-4
4.2.3 LRC CHK (checksum).....................................................................4-5
4.3 Communication Protocol RTU mode........................................................4-7
4.3.1 Address (Communication Address).................................................4-7
4.3.2 CMD (Command code) and DATA..................................................4-7
4.3.3 CRC CHK (check sum) ...................................................................4-8
4.4 PLC Device Address.............................................................................4-11
4.5 Command Code....................................................................................4-13

iii
4.5.1 Command Code: 01, Read Status of Contact (Input point X is not
included)...................................................................................... 4-13
4.5.2 Command Code: 02, Read Status of Contact (Input point X is
included)..................................................................................... 4-14
4.5.3 Command Code: 03, Read Content of Register (T, C, D).............. 4-15
4.5.4 Command Code: 05, Force ON/OFF single contact...................... 4-16
4.5.5 Command Code: 06, Set content of single register....................... 4-17
4.5.6 Command Code: 15, Force ON/OFF multiple contacts................. 4-18
4.5.7 Command Code: 16, Set content of multiple registers.................. 4-19
5Sequential Function Chart
5.1 Step Ladder Instruction [STL], [RET].........................................................5-2
5.2 Sequential Function Chart (SFC) ..............................................................5-3
5.3 The Operation of STL Program.................................................................5-5
5.4 Points to Note for Designing a Step Ladder Program..............................5-12
5.5 Types of Sequences................................................................................5-14
5.6 IST Instruction.........................................................................................5-25
6 Troubleshooting
6.1 Common Problems and Solutions.............................................................6-2
6.2 Error code Table (Hex)..............................................................................6-5
6.3 Error Detection Devices.............................................................................6-9
6.4 Low Voltage Handling Procedures..........................................................6-10
7 CANopen Function and Operation
7.1 The Introduction of CANopen...................................................................7-2
7.1.1 The Description of the CANopen Functions ....................................7-2
7.1.2 The Input/Output Mapping Areas.....................................................7-3
7.2 The Installation and the Network Topology ..............................................7-3
7.2.1 The Dimensions...............................................................................7-3
7.2.2 The Profile.......................................................................................7-4
7.2.3 The CAN Interface and the Network Topology................................7-4
7.3 The CANopen Protocol.............................................................................7-9
7.3.1 The Introduction of the CANopen Protocol......................................7-9
7.3.2 The CANopen Communication Object...........................................7-10
7.3.3 The Predefined Connection Set.....................................................7-15
7.4 Sending SDO, NMT and Reading Emergency Message through the Ladder
Diagram..................................................................................................7-15
7.4.1 Data Structure of SDO Request Message.....................................7-16
7.4.2 Data Structure of NMT Message...................................................7-18
7.4.3 Data Structure of EMERGENCY Request Message......................7-19
7.4.4 Example on Sending SDO through the Ladder Diagram...............7-20
7.5 Indicators and Troubleshooting..............................................................7-22
7.5.1 Description of Indicators................................................................7-22
7.5.2 CANopen Network Node State Display.........................................7-23
7.6 Application Example...............................................................................7-25
7.7 Object Dictionary.....................................................................................7-33

iv
Appendix A
A.1 Installing the USB Driver in Windows 7.................................................... A-2
A.2 Installing the USB in Windows 8.............................................................. A-4
A.3 Installing the USB Driver in Windows 10.................................................. A-7
A.4 Notes on Utilizing USB Communication................................................... A-9
Appendix B
B.1 Specifications for an Ethernet PLC/Module..............................................B-2
B.2 Ethernet Control Registers.......................................................................B-3
B.2.1 Station Addresses of Ethernet Modules..........................................B-3
B.2.2 DVP-SE Series PLC (Ethernet PLC)...............................................B-3
B.2.3 DVPEN01-SL (Left-side Ethernet Communication Module)............B-4
B.2.4 DVP-FEN01 (DVP-EH3 Series Ethernet Communication Card) .....B-6
B.3 Searching for an Ethernet PLC................................................................B-8
B.3.1 Communication setting....................................................................B-8
B.3.2 Broadcast Search............................................................................B-9
B.3.3 Searching for a Model Specified ...................................................B-10
B.3.4 Searching by an IP Address..........................................................B-11
B.4 Data Exchange ......................................................................................B-13
B.5 EtherNet/IP List......................................................................................B-14
B.5.1 EtherNet/IP Information Supported by DVP-SE series PLCs........B-14
B.5.2 EtherNet/IP Objects Supported by DVP-SE series PLCs..............B-15
B.6 RTU Mapping.........................................................................................B-21
B.6.1 Setting the RTU Mapping..............................................................B-21
B.6.2 Application of the RTU Mapping....................................................B-22
Appendix C
C.1 TP Memory Map.......................................................................................C-2
C.2 Special Data Register ..............................................................................C-4
C.2.1 PLC CPU Built-in Inputs and Outputs ...........................................C-12
C.3 Special Auxiliary Relay...........................................................................C-15
C.4 Instructions applicable to TP..................................................................C-25
C.4.1 Basic Instructions..........................................................................C-25
C.4.2 Numerical List of Instructions........................................................C-25
C.4.3 Additional Remarks on High-speed Instructions............................C-30
C.5 Definitions of TP04P Communication Ports...........................................C-31
C.6 Example of Setting up the Communication............................................C-32
C.6.1 Communication with AH/AS Series PLC.......................................C-32
Appendix D
D.1 Current Consumption of a Slim PLC/an Extension Module..................D-2
D.1.1 Current supply and current consumption of a PLC (+24VDC).....D-2
D.1.2 Current supply and current consumption of a digital input/output
module (+24VDC)..............................................................D-3

v
D.1.3 Current consumption of a special input/output module (+24VDC)D-3
D.1.4 Current consumption of a left-side high-speed special module
(+24VDC) ...........................................................................D-4
D.1.5 Calculating the maximum current consumed by a system...........D-4
Appendix E
E.1 DVP Series Slim Type Special Modules...................................................E-2
E.2 Connections of a Slim Type Special Module (Work alone).......................E-2
E.3 Using WPL Editor.....................................................................................E-2
Appendix F
F.1 ES2 and EX2 Series - General Specifications..........................................F-2
F.2 SA2, SS2, SX2, SE Series - General Specifications ................................ F-3
F.3 EC5 Series - General Specifications ........................................................ F-4
F.4 TP Series - General Specifications...........................................................F-5
* All the Windows screenshots are used with permission from Microsoft.

vi
The DVP series PLCs are listed below.
Series Model name
DVP-ES2
DVP16ES200R, DVP16ES200T, DVP24ES200R, DVP24ES200T,
DVP32ES200R, DVP32ES200T, DVP32ES211T, DVP40ES200R,
DVP40ES200T, DVP60ES200R, DVP60ES200T,
DVP40ES200RM, DVP58ES200R, DVP58ES200T,
DVP80ES200R, DVP80ES200T
DVP-ES2-C DVP32ES200RC, DVP32ES200TC
DVP-ES2-E DVP20ES200RE, DVP20ES200TE, DVP32ES200RE,
DVP32ES200TE, DVP40ES200RE, DVP40ES200TE,
DVP60ES200RE, DVP60ES200TE
DVP-EX2 DVP20EX200R, DVP20EX200T, DVP30EX200R, DVP30EX200T
DVP-SS2 DVP14SS211R, DVP14SS211T, DVP28SS211R, DVP28SS211T,
DVP12SS211S
DVP-SA2 DVP12SA211R, DVP12SA211T, DVP28SA211R, DVP28SA211T
DVP-SX2 DVP20SX211R, DVP20SX211S, DVP20SX211T
DVP-SE DVP12SE11R, DVP12SE11T, DVP26SE11R, DVP26SE11T,
DVP26SE11S
TP
TP04P-16TP1R, TP04P-32TP1R, TP04P-22XA1R,
TP04P-21EX1R, TP04P-16TP1T, TP04P-32TP1T,
TP04P-22XA1T, TP04P-21EX1T, TP70P-16TP1R,
TP70P-32TP1R, TP70P-22XA1R, TP70P-21EX1R,
TP70P-16TP1T, TP70P-32TP1T, TP70P-22XA1T,
TP70P-21EX1T, TP04P-08TP1R

1-1
PLC Concepts
This chapter introduces basic and advanced concepts of ladder logic, which is the mostly
adopted programming language of PLC. Users familiar with the PLC concepts can move to
the next chapter for further programming concepts. However, for users not familiar with the
operating principles of PLC, please refer to this chapter to get a full understanding of PLC
concepts.
Table of Contents
1.1 PLC Scan Method...............................................................................................................1-2
1.2 Current Flow........................................................................................................................1-3
1.3 NO Contact, NC Contact ....................................................................................................1-3
1.4 PLC Registers and Relays.................................................................................................1-3
1.5 Ladder Logic Symbols.......................................................................................................1-4
1.5.1 Creating a PLC Ladder Program...........................................................................1-5
1.5.2 LD / LDI (Load NO contact / Load NC contact).....................................................1-6
1.5.3 LDP / LDF (Load Rising edge trigger/ Load Falling edge trigger).........................1-6
1.5.4 AND / ANI (Connect NO contact in series / Connect NC contact in series)..........1-6
1.5.5 ANDP /ANDF (Connect Rising edge in series/ Connect Falling edge in series)..1-6
1.5.6 OR / ORI (Connect NO contact in parallel / Connect NC contact in parallel) .......1-6
1.5.7 ORP / ORF (Connect Rising edge in parallel/ Connect Falling edge in parallel)..1-6
1.5.8 ANB (Connect block in series)..............................................................................1-6
1.5.9 ORB (Connect block in parallel)............................................................................1-7
1.5.10 MPS / MRD / MPP (Branch instructions) ..............................................................1-7
1.5.11 STL (Step Ladder Programming) ..........................................................................1-7
1.5.12 RET (Return).........................................................................................................1-8
1.6 Conversion between Ladder Diagram and Instruction List Mode.................................1-9
1.7 Fuzzy Syntax.....................................................................................................................1-10
1.8 Correcting Ladder Diagram.............................................................................................1-11
1.9 Basic Program Design Examples ...................................................................................1-13

DVP-ES2/EX2/EC5/SS2/SA2/SX2/SE&TP Operation Manual - Programming
1-2
1.1 PLC Scan Method
PLC utilizes a standard scan method when evaluating user program.
Scanning process:
Scan input status
Read the physical input status and store the data in internal
memory.
Evaluate user program
Evaluate the user program with data stored in internal memory.
Program scanning starts from up to down and left to right until
reaching the end of the program.
Refresh the outputs
Write the evaluated data to the physical outputs
X0
Y0
Y0
M0
Input X
Input terminal
Store to memory
Input signal memory
Device Memory
Read X0 status from memory
Write Y0 state into
Read Y0 state from memory
Write M0 state into
Output
Program
Input signal
Output
Output Y
Output terminal
Output latched memory
Input signal:
PLC reads the ON/OFF status of each input and
stores the status into memory before evaluating
the user program.
Once the external input status is stored into
internal memory, any change at the external
inputs will not be updated until next scan cycle
starts.
Program:
PLC executes instructions in user program from
top to down and left to right then stores the
evaluated data into internal memory. Some of this
memory is latched.
Output:
When END command is reached the program
evaluation is complete. The output memory is
transferred to the external physical outputs.
Scan time
The duration of the full scan cycle (read, evaluate, write) is called “scan time.” With more I/O or
longer program, scan time becomes longer.
Read
scan time
PLC measures its own scan time and stores the value (0.1ms) in register
D1010, minimum scan time in register D1011, and maximum scan time in
register D1012.
Measure
scan time
Scan time can also be measured by toggling an output every scan and then
measuring the pulse width on the output being toggled.
Calculate
scan time
Scan time can be calculated by adding the known time required for each
instruction in the user program. For scan time information of individual
instruction please refer to Ch3 in this manual.
Scan time exception
PLC can process certain items faster than the scan time. Some of these items interrupts and halt
the scan time to process the interrupt subroutine program. A direct I/O refresh instruction REF
allows the PLC to access I/O immediately during user program evaluation instead of waiting until
the next scan cycle.

1. PLC Concepts
1-3
1.2 Current Flow
Ladder logic follows a left to right principle. In the example below, the current flows through paths
started from either X0 or X3.
X0 Y0
X1 X2 Y0
X3 X4
Reverse Current
When a current flows from right to left, which makes a reverse current logic, an error will be
detected when compiling the program. The example below shows the reverse current flow.
X6
X0 Y0
X1 X2 Y0
X3 X4 X5
ab
1.3 NO Contact, NC Contact
NO contact
Normally Open Contact, A contact
NC Contact
Normally Closed Contact, B contact
1.4 PLC Registers and Relays
Introduction to the basic internal devices in a PLC
X
(Input Relay)
Bit memory represents the physical input points and receives external input
signals.
Device indication: Indicated as Xand numbered in octal, e.g. X0~X7,
X10~X17…X377
Y
(Output Relay)
Bit memory represents the physical output points and saves the status to be
refreshed to physical output devices.
Device indication: Indicated as Yand numbered in octal, e.g. Y0~Y7,
Y10~Y17. ..Y377
M
(Internal Relay)
Bit memory indicates PLC status.
Device indication: Indicated as Mand numbered in decimal, e.g. M0, M1,
M2…M4095
S
(Step Relay)
Bit memory indicates PLC status in Step Function Control (SFC) mode. If no
STL instruction is applied in program, step point S can be used as an internal
relay M as well as an annunciator.
Device indication: Indicated as Sand numbered in decimal, e.g. S0, S1,
S2…S1023
T
(Relay)
(Word)
(Dword)
Bit, word or double word memory used for timing and has coil, contact and
register in it. When its coil is ON and the set time is reached, the associated
contact will be energized. Every timer has its resolution (unit:
1ms/10ms/100ms).
Device indication: Indicated as Tand numbered in decimal, e.g. T0, T1,
T2…T255

DVP-ES2/EX2/EC5/SS2/SA2/SX2/SE&TP Operation Manual - Programming
1-4
C
(Counter)
(Relay)
(Word)
(Dword)
Bit, word or double word memory used for counting and has coil, contact and
register in it. The counter count once (1 pulse) when the coil goes from OFF to
ON. When the predefined counter value is reached, the associated contact will
be energized. There are 16-bit and 32-bit high-speed counters available for
users.
Device indication: Indicated as Cand numbered in decimal, e.g.
C0, C1,
C2…C255
D
(Data register)
(Word)
Word memory stores values and parameters for data operations. Every
register is able to store a word (16-bit binary value). A double word will occupy
2 consecutive data registers.
Device indication: Indicated as Dand numbered in decimal, e.g. D0, D1,
D2…D4999
E, F
(Index register)
(Word)
Word memory used as a modifier to indicate a specified device (word and
double word) by defining an offset. Index registers not used as a modifier can
be used as general purpose register.
Device indication: indicated as E0 ~ E7 and F0 ~ F7.
1.5 Ladder Logic Symbols
The following table displays list of WPLSoft symbols their description, command, and memory
registers that are able to use the symbol.
Ladder Diagram
Structure
Explanation Instruction Available Devices
NO (Normally Open)
contact / A contact
LD X, Y, M, S, T, C
NC (Normally Closed)
contact / B contact
LDI X, Y, M, S, T, C
NO contact in series AND X, Y, M, S, T, C
NC contact in series ANI X, Y, M, S, T, C
NO contact in parallel OR X, Y, M, S, T, C
NC contact in parallel ORI X, Y, M, S, T, C
Rising-edge trigger
switch
LDP X, Y, M, S, T, C
Falling-edge trigger
switch
LDF X, Y, M, S, T, C
Rising-edge trigger in
series
ANDP X, Y, M, S, T, C
Falling-edge trigger in
series
ANDF X, Y, M, S, T, C
Rising-edge trigger in
parallel ORP X, Y, M, S, T, C
Falling-edge trigger in
parallel ORF X, Y, M, S, T, C
Block in series ANB None
Block in parallel ORB None