Wilo Control EC-Fire, Installation And Operating Instructions Manual, Page: 73 / 114

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Installation and operating instructions Wilo-Control EC-Fire 63
13.3 ModBus: Data types
13.4 Modbus: Parameter overview
Data type Description
INT16 Integers in the range from -32768 to 32767. The number range actually used for a data point may be different.
UINT16 Unsigned integers in the range from 0 to 65535. The number range actually used for a data point may be
different.
Enum Is a list. Only values listed in the parameters can be set.
BOOL Boolean value is a parameter with exactly two states (0 – false and 1 – true). Generally, all values greater than
zero are classified as true.
Bitmap Is an array of 16 Boolean values (bits). Values are indexed from 0 to 15. The number read from or written to the
register is the sum of all bits with value 1 multiplied by 2 to the power of index.
• Bit 0

2
0
=1
• Bit 1

2
1
=2
• Bit 2

2
2
=4
• Bit 3

2
3
=8
• Bit 4

2
4
=16
• Bit 5

2
5
=32
• Bit 6

2
6
=64
• Bit 7

2
7
=128
• Bit 8

2
8
=256
• Bit 9

2
9
=512
• Bit 10

2
10
=1024
• Bit 11

2
11
=2048
• Bit 12

2
12
=4096
• Bit 13

2
13
=8192
• Bit 14

2
14
=16384
• Bit 15

2
15
=32768
Example for clarification: Bit 3, 6, 8, 15 are 1 all others are 0. The sum is then
2
3
+2
6
+2
8
+2
15
= 8+64+256+32768 = 33096.
The other way round is also possible. Based on the bit with the highest index, check whether the read number
is greater than/equal to the power of two. If this is the case, bit 1 is set and the power of two is deducted from
the number. Then the check with the bit with the next lower index and the recently calculated residual number
is repeated until bit 0 is reached or the remainder is zero.
Example for clarification: The read number is 1416. Bit 15 will be 0, since 1416<32768. Bit 14 to 11 will also
be 0. Bit 10 will be 1, since 1416>1024. The remainder will be 1416-1024=392. Bit 9 will be 0, since 392<512.
Bit 8 will be 1 since 392>256. The remainder will be 392-256=136. Bit 7 will be 1 since 136>128. The remainder
will be 136-128=8. Bit 6 to 4 will be 0. Bit 3 will be 1 since 8=8. The remainder will be 0. Remaining bits 2 to 0
will thus be 0.
Bitmap32 Is an array of 32 Boolean values (bits). The calculation details can be found in the description for Bitmap.
Holding
register Name Data type Scale
& unit Elements Access Added
40001
(0) Version communication
profile UINT16 0.001 R 31.000
40002
(1) Wink service BOOL RW 31.000
40003
(2) Switch box type ENUM 0. SC
1. SC...FC
2. SCe
3. CC
4. CC...FC
5. CCe
6. SCe NWB
7. CCe NWB
8. EC
9. ECe
10. ECe NWB R 31.000