BRONKHORST EL-FLOW Base F-201AB, Instruction Manual

Page: 25 / 40

BRONKHORST®
9.17.061 EL-FLOW Base Series Mass Flow Controllers Page 25
MODBUS REGISTERS
PARAMETER
NAME
PARAMETER
TYPE
ACCES
S
PDU ADDRESS REGISTER NUMBER
REMARK
Hex Dec Hex Dec
Open from zero c. resp. Unsigned char RW

0x0E52 3666 0x0E53 3667
Calibration mode Unsigned char RW  0x0E61 3681 0x0E62 3682
Monitor mode Unsigned char RW

0x0E62 3682 0x0E63 3683
Reset Unsigned char W 0x0E68 3688 0x0E69 3689
Fieldbus2 address Unsigned char RW

0x0F8A 3978 0x0F8B 3979 Modbus address
OEMD2
Fieldbus2 parity Unsigned char RW

0x0F8C 3980 0x0F8D 3981 Modbus parity
OEMD2
Fieldbus1 address Unsigned char RW

0x0FAA 4010 0x0FAB 4011 Modbus address
Fieldbus1 parity Unsigned char RW

0x0FAC 4012 0x0FAD 4013 Modbus parity
Sensor differentiator dn Float RW

0x8158..0x8159 33112..33113 0x8159..0x815A 33113..33114
Sensor differentiator up Float RW

0x8160..0x8161 33120..33121 0x8161..0x8162 33121..33122
Capacity 100% Float RW

0x8168..0x8169 33128..33129 0x8169..0x816A 33129..33130
Fluid name String (10 bytes) RW

0x8188..0x818C 33160..33164 0x8189..0x818D 33161..33165
Capacity unit String (7 bytes) RW  0x81F8..0x81FB 33272..33275 0x81F9..0x81FC 33273..33276
Fmeasure Float R 0xA100..0xA101 41216..41217 0xA101..0xA102 41217..41218
FSetpoint Float RW 0xA118..0xA119 41240..41241 0xA119..0xA11A 41241..41242
Temperature Float R 0xA138..0xA139 41272..41273 0xA139..0xA13A 41273..41274 See addr 0x0427
Capacity 0% Float RW

0xA1B0..0xA1B1 41392..41393 0xA1B1..0xA1B2 41393..41394
Device type String (6 bytes) R 0xF108..0xF10A 61704..61706 0xF109..0xF10B 61705..61707
BHTModel number String (14 bytes) RW

0xF110..0xF116 61712..61718 0xF111..0xF117 61713..61719
Serial number String (16 bytes) RW  0xF118..0xF11F 61720..61727 0xF119..0xF120 61721..61728
Customer model String (16 bytes) RW

0xF120..0xF127 61728..61735 0xF121..0xF128 61729..61736
Firmware version String (5 bytes) R 0xF128..0xF12A 61736..61738 0xF129..0xF12B 61737..61739
Usertag String (13 bytes) RW 0xF130..0xF136 61744..61750 0xF131..0xF137 61745..61751
Valve output Unsigned long RW 0xF208..0xF209 61960..61961 0xF209..0xF20A 61961..61962
PID-Kp Float RW

0xF2A8..0xF2A9 62120..62121 0xF2A9..0xF2AA 62121..62122
PID-Ti Float RW

0xF2B0..0xF2B1 62128..62129 0xF2B1..0xF2B2 62129..62130
PID-Td Float RW

0xF2B8..0xF2B9 62136..62137 0xF2B9..0xF2BA 62137..62138
Density actual Float R 0xF478..0xF479 62584..62585 0xF479..0xF47A 62585..62586
Dynamic display factor Float RW  0xF508..0xF509 62728..62729 0xF509..0xF50A 62729..62730
Static display factor Float RW

0xF510..0xF511 62736..62737 0xF511..0xF512 62737..62738
Exponential smoothing Float RW

0xF520..0xF521 62752..62753 0xF521..0xF522 62753..62754
Fieldbus2 baudrate Long integer RW

0xFD48..0xFD49 64584..64585 0xFC49..0xFC4A 64585..64586 Modbus
baudrate OEMD2
Fieldbus1 baudrate Long integer RW

0xFD48..0xFD49 64840..64841 0xFD49..0xFD4A 64841..64842 Modbus
baudrate
Notes:

Access indicates whether parameter can be Read and/or Written.

When a byte parameter is read, the upper 8-bits of the Modbus register will be 0. When a byte
parameter is written, the upper 8-bits must be set to 0.

Long integer parameters have a length of 4 bytes and are mapped on two consecutive Modbus
registers. The first register contains bit 32-16, the second register contains bit 15-0.

Floating point parameters have a length of 4 bytes and are mapped on two consecutive Modbus
registers. Floats are in single precision IEEE format (1 sign bit, 8 bits exponent and 23 bits fraction).
The first register contains bit 32-16, the second register contains bit 15-0.

String parameters can have a length of maximal 16 bytes and can take up to 8 Modbus registers
where each register contains two characters (bytes). The upper byte of the first register contains the
first character of the string. When writing strings, the write action should always start from the first
register as a complete block (it is not possible to write a part of a string). If the string is shorter than
the specified maximum length the string should be terminated with a 0.
Details and meaning can be found in document 9.17.023 Operation instructions digital
instruments.
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