PD 667 Profibus - Slave configuration guide.

Index:

Danfoss VLT 2800
Danfoss VLT FC300
Simatic S7-300 CPU, configured as slave
Simatic DP/DP Transceiver

Danfoss VLT 2800.

Frequency converter from Danfoss that uses the ProfiDrive profile.

The file "da030404.GSD" has been used as a basis for this guide.

I/O data in ProfiDrive are named PPO objects. In ProfiDrive, 8 different PPOs are specified.

In ProfiDrive, the input and output arrays for a given PPO always have identical sizes.

PPO

Byte:

Out

PCA

IND

PVA

CTW

MRV

PCA

IND

PVA

STW

MAV

Out

PCA

IND

PVA

CTW

MRV

PCD 3 ... PCD 6

PCA

IND

PVA

STW

MAV

PCD 3 ... PCD 6

Out

CTW

MRV

STW

MAV

Out

CTW

MRV

PCD 3 ... PCD 6

STW

MAV

PCD 3 ... PCD 6

Out

PCA

IND

PVA

CTW

MRV

PCD 3 ... PCD 10

PCA

IND

PVA

STW

MAV

PCD 3 ... PCD 10

Out

CTW

MRV

PCD3...PCD4

STW

MAV

PCD3...PCD4

Out

CTW

MRV

PCD3 ... PCD8

STW

MAV

PCD3 ... PCD8

Out

CTW

MRV

PCD3 ... PCD10

STW

MAV

PCD3 ... PCD10

Only the data marked with grey are background is exchanged, in the PD 667 starting form input[1] / output[1].

Example:

If PPO5 is selected PCA is in Input[1] and Input[2].

If PPO6 is selected CTW is in Input[1] and Input[2].

CTW	Control word. Consists of 16 bits for direct control of VLT
STW	Status word. Consists of 16 bits for direct display of status
MRV	Main reference value. Normally the frequency set point
MAV	Main actual value. Normally the actual output frequency.
PCA, IND, PVA	Used as a "mailbox" system to read or write single data from the Master. (Refer to Danfoss Profibus documentation for details)
PCD3 ...... PCD10	Used for selectable read or write data parameters. (Refer to Danfoss Profibus documentation for details)

Configuration:
	Size	List (with module consistency)	InputSize	OutputSize
PPO1	2	243,241	12	12
PPO2	2	243,245	20	20
PPO3	1	241	4	4
PPO4	1	245	12	12
PPO5	2	243,249	28	28
PPO6	1	243	8	8
PPO7	1	247	16	16
PPO8	1	249	20	20

IdentNo:	1028 (0404 hex)
MaxTSDR:	15
Parameters.Size:	3
Parameters.List:	0,0,0

VLT 2800 notes:

Always refer to the appropriate Danfoss documentation. The below notes may apply differently to other versions of VLTs.

Slave address is set on the VLT display, parameter No.: 918. To activate a new slave address, the power must be removed and re-applied.

Parameter 502 to 508: Select different bus control options.

Parameter 512: Select between "ProfiDrive" or "FC control" layout for the 16 bits in control word and status word.

The "Start" key on the VLT must be pressed to enable control of the VLT by Profibus (Standby mode). Pressing the "Stop" key on the VLT switches to local control, and bit 9 in the STW "bus control" is reset.

Frequency set point (MRV) and actual frequency (MAV) is set and shown as a value 0..$4000 (Hex) where $4000 is the maximum permitted frequency.

$4000 is equal to 16384 decimal.

Danfoss VLT FC300.

Frequency converter from Danfoss that uses the ProfiDrive profile.

The file "DA02040A.GSD" has been used as a basis for this guide.

The FC300 and VLT 2800 share the same ProfiDrive layout, the same Configuration and Setup, except the FC300 has IDENT No.: = 1034 (040A Hex)

Please also be aware that FC300 menu items and number reference for VLT data is different to what is described in “VLT 2800 notes”.

FC300 Profibus terminal connection:

PD 667 “A” to terminal 63

PD 667 “B” to terminal 62

PD 667 “S” to terminal 66

Simatic PLC S7-300

Type "CPU313C-2DP"

The file "siem80D0.GSE" has been used as the basis for this guide

The Simatic Manager is used to configure the slave interface of the S7-CPU.

In the S7-CPU, the interface is set to slave mode and the selection of additional diagnostic features must be removed. This will set the slave interface to a fully passive state (no active functions).

Baud rate and slave address must be selected, and the required communication objects must be created.

The configuration of input and output between the S7 and the PD 667 mush match.

Configuration of the PD 667: In the Configuration.List[1...n ] the number of required communication objects are listed. The sum of input and output sizes are calculated and entered into InputSize and OutputSize variables respectively.

In addition to the user configuration, this slave requires 3 configuration bytes for the system. These are the first 3 elements in the configuration list, and must always be "0". These 3 data items must be included when the configuration size variable is set. The system configuration does not influence the Input and output sizes.

IdentNo:	32976 (80D0 hex)
MaxTSDR:	15
Parameters.Size:	3
Parameters.List:	0,0,0

Configuration:

Input to the PD 667 (match definitions of S7 Q area.):

Name	Size	Consistency	Identifier hex	Identifier decimal	Input size
Master input (Slave Q)	1 byte	unit	0x10	16	1
Master input (Slave Q)	2 byte	unit	0x11	17	2
Master input (Slave Q)	2 byte	total length	0x91	145	2
Master input (Slave Q)	4 byte	unit	0x13	19	4
Master input (Slave Q)	4 byte	total length	0x93	147	4
Master input (Slave Q)	8 byte	unit	0x17	23	8
Master input (Slave Q)	8 byte	total length	0x97	151	8
Master input (Slave Q)	16 byte	unit	0x1F	31	16
Master input (Slave Q)	16 byte	total length	0x9F	159	16
Master input (Slave Q)	1 word	unit	0x50	80	2
Master input (Slave Q)	2 word	unit	0x51	81	4
Master input (Slave Q)	2 word	total length	0xD1	209	4
Master input (Slave Q)	4 word	unit	0x53	83	8
Master input (Slave Q)	4 word	total length	0xD3	211	8
Master input (Slave Q)	8 word	unit	0x57	87	16
Master input (Slave Q)	8 word	total length	0xD7	215	16
Master input (Slave Q)	13 word	unit	0x5C	92	26
Master input (Slave Q)	13 word	total length	0xDC	220	26
Master input (Slave Q)	16 word	unit	0x5F	95	32
Master input (Slave Q)	16 word	total length	0xDF	223	32

Output from the PD 667 (match definition of S7 I area.):

Name	Size	Consistence	Identifier hex	Identifier decimal	Output size
Master output (Slave I)	1 byte	unit	0x20	32	1
Master output (Slave I)	2 byte	unit	0x21	33	2
Master output (Slave I)	2 byte	total length	0xA1	161	2
Master output (Slave I)	4 byte	unit	0x23	35	4
Master output (Slave I)	4 byte	total length	0xA3	163	4
Master output (Slave I)	8 byte	unit	0x27	39	8
Master output (Slave I)	8 byte	total length	0xA7	167	8
Master output (Slave I)	16 byte	unit	0x2F	47	16
Master output (Slave I)	16 byte	total length	0xAF	175	16
Master output (Slave I)	1 word	unit	0x60	96	2
Master output (Slave I)	2 word	unit	0x61	97	4
Master output (Slave I)	2 word	total length	0xE1	225	4
Master output (Slave I)	4 word	unit	0x63	99	8
Master output (Slave I)	4 word	total length	0xE3	227	8
Master output (Slave I)	8 word	unit	0x67	103	16
Master output (Slave I)	8 word	total length	0xE7	231	16
Master output (Slave I)	13 word	unit	0x6C	108	26
Master output (Slave I)	13 word	total length	0xEC	236	26
Master output (Slave I)	16 word	unit	0x6F	111	32
Master output (Slave I)	16 word	total length	0xEF	239	32

Example setup to read 208 byes in the PLC and write 224 bytes to the PLC:

Parameters.Size	3
Parameters.List	0,0,0
Configuration.Size	17
Configuration.List	0,0,0,95,95,95,31,95,95,95,111,111,111,111,111,111,111
Configuration.Inputsize	208
Configuration.outputsize	224

Simatic DP/DP Transceiver, aliasDP/DP Coupler

Version: Release 2

The file "si018070.GSE" has been used as the basis for this guide

The DP/DP Transceiver is used to exchange DP data between two Profibus Master systems.

Each master system runs independently, and are totally isolated from each other.

The DP/DP Transceiver has a slave address for each master. These slave addresses can be the same or different, as can the communication speed on each side.

When one master sends an output to the DP/DP Transceiver, the other master can read this as an input from the DP/DP Transceiver. The configuration of input and output must match, so that the size and order of output in one master matches the size and order of inputs in the other master, and vice versa.

The DP/DP Transceiver can transfer a maximum of 244 bytes in each direction.

IdentNo:	32880 (8070 hex)
MaxTSDR:	15
Parameters.Size:	8
Parameters.List[1]..[8]	0,0,0,5,129,0,0,0 Parameter.List[8] : Extended diagnostic: 0 = On; 128 = Off

Overview of matching configurations between the two masters:

Configuration.List contains one or two numbers for each data definition.

The number of used elements in Configuration.List is entered into Configuration.Size.

The sum of InputSize (in bytes) is entered into Configuration.InputSize

The sum of OutputSize (in bytes) is entered into Configuration.OutputSize

.List[x]	InputSize:	Name	OutputSize:	.List[x]
16	1	1 byte input 0x10
		1 byte output 0x20	1	32

17	2	2 byte input 0x11
		2 byte output 0x21	2	33

19	4	4 byte input 0x 13
		4 byte output 0x23	4	35

23	8	8 byte input 0x17
		8 byte output 0x27	8	39

31	16	16 byte input 0x1F
		16 byte output 0x2F	16	47

64,31	32	32 byte input 0x40,0x1F
		32 byte output 0x80,0x1F	32	128,31

64,63	64	64 byte input 0x40,0x3F
		64 byte output 0x80,0x3F	64	128,63

64,127	128	64 word input 0x40,0x7F
		64 word output 0x80,0x7F	128	128,127

144	1	1 byte input consistent 0x90
		1 byte output consistent 0xA0	1	160

145	2	2 byte input consistent 0x91
		2 byte output consistent 0xA1	2	161

147	4	4 byte input consistent 0x93
		4 byte output consistent 0xA3	4	163

151	8	8 byte input consistent 0x97
		8 byte output consistent 0xA7	8	167

159	16	16 byte input consistent 0x9F
		16 byte output consistent 0xAF	16	175

64,159	32	32 byte input consistent 0x40 0x9F
		32 byte output consistent 0x80 0x9F	32	128,159

64,191	64	64 byte input consistent 0x40 0xBF
		64 byte output consistent 0x80 0xBF	64	128,191

64,255	128	64 word input consistent 0x40 0xFF
		64 word output consistent 0x80 0xFF	128	128,255

Example:

In the external master, 5 objects are defined:

4 byte output

16 byte input

64 word input

2 byte output

8 byte output consistent

This must match 5 object definitions in the PD 667:

(Note: object No. 3 uses both Configuration.List[3] and Configuration.List[4])

Configuration.List[1] = 19	4 byte input (matches 4 byte output)
Configuration.List[2] = 47	16 byte output (matches 16 byte input)
Configuration.List[3] = 128
Configuration.List[4] = 127	64 word output (matches 64 word input)
Configuration.List[5] = 17	2 byte input (matches 2 byte output)
Configuration.List[6] = 151	8 byte input consistent (matches 8 byte output consistent)
Configuration.Size = 6	Number of elements used in Configuration.List
Configuration.InputSize = 14	Calculated as: 16 + 128 number of bytes used as Output
Configuration.OutputSize = 144	Calculated as: 4 + 2 + 8 number of bytes used as Input

Notes:

The "DIA" switch on the DP/DP Transceiver enables "data validation", where the DP / DP Transceiver monitors the 2 masters. Status is shown in the least significant bit of the first input byte in each direction. This function will thus modify the first output byte from each master.

In the external master's first parameter byte, the 2 most significant bits may be set. They have the following meaning:

bit7: DPV1 mode

bit6: Failsafe mode

As these two functions are not supported by the PD 667, Parameter. List[1] is set to 0.

Extended diagnostic ON: The SF1 / SF2 LED is lit if a failure occurs to the network e.g. no connection.

Extended diagnostic OFF: The SF1 / SF2 LED is not lit if a failure occurs to the network.

The DP/DP Transceiver will in both extended diagnostic modes report a "read diagnostic request" to both DP masters. The PD 667 automatically reads the diagnostic data and signals this afterwards by the status and notification bits. A Simatic S7 CPU calls OB 82 in both situations, but it only writes to the diagnostic buffer if the Extended diagnostic is ON.

A diagnostic message is 26 bytes long: Standard diagnosis is found in List[1..6] and module diagnostics in List[17..26].

If the parameter.size is set to 0 or if the parameters are wrong, the DP/DP transceiver will work in a mode that is compatible with the first generation. This had reduced data I/O size and only 11 bytes of diagnostic data.

For further information please refer to the DP/DP Transceiver documentation.