E+E Elektronik Modbus MOP301, Руководство пользователя

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User Manual MOP301 Digital Moisture in Oil Immersion Probe
The register block for the configuration of the customisable Modbus map consists of the registers 6001
(0x1770) to 6010 (0x1779). For the blockwise query of the measured values behind Modbus registers 3001
(0xBB8) to 3020 (0xBCB), the firmware accesses this configuration area and thus gets the information
which measured value/status registers are to be output. A maximum of 10 user-defined registers can be
mapped. The table below shows an example:
Registers ...
... with these
assigned measurands ...
... map to registers ...
... mirrored from
source registers
Dec Hex Meas. Unit Type Dec Hex Dec Hex
Function code 0x10 Function code 0x03 / 0x04
6001 0x1770 Status - INT16 3001 0xBB8 602 0x259
6002 0x1771 T °C FLOAT32 3002 0xBB9 1003 0x3EA
°C FLOAT32 3003 0xBBA 1004 0x3EB
6003 0x1772 T °F FLOAT32 3004 0xBBB 1005 0x3EC
°F FLOAT32 3005 0xBBC 1006 0x3ED
6004 0x1773 T °C INT16 3006 0xBBD 4002 0xFA1
6005 0x1774 aw - FLOAT32 3007 0xBBE 1035 0x46E
- FLOAT32 3008 0xBBF 1036 0x46F
6006 0x1775 x ppm FLOAT32 3009 0xBC0 1141 0x474
ppm FLOAT32 3010 0xBC1 1142 0x475
6007 0x1776 Saturation % FLOAT32 3011 0xBC2 1137 0x470
% FLOAT32 3012 0xBC3 1138 0x471
6008 0x1777 aw - INT16 3013 0xBC4 4068 0xFE3
6009 0x1778 x ppm INT16 3014 0xBC5 4071 0xFE6
6010 0x1779 Saturation % INT16 3015 0xBC6 4069 0xFE4
3016 0xBC7 65536 0xFFFF
3017 0xBC8 65536 0xFFFF
3018 0xBC9 65536 0xFFFF
3019 0xBCA 65536 0xFFFF
3020 0xBCB 65536 0xFFFF
Tab. 7 Custom Modbus map example
5.5 Device Status Indication
If a critical error occurs, all Modbus values are set to NaN (according to IEEE754 for data type FLOAT32)
or to 0x8000 (INT16). It is possible to read out all status and error information via Modbus register 602
(0x259). Errors are displayed in bit-coded form. If an event is present, the corresponding bit is set to 1.
Measured values outside the measureing range are limited with the corresponding limit value.
Error Bits Description Recommended action
Bit 0 Error: Hardware T-sensing Return the faulty unit to E+E for service
Bit 1 Error: Short circuit of T sensing element
1. Clean sensing head acc. to cleaning instructions
2. Return the faulty unit to E+E for service
Bit 2 Error: Open loop of T sensing element Return the faulty unit to E+E for service
Bit 3 Error: Short circuit of moisture sensing element
1. Clean sensing head acc. to cleaning instructions
2. Return the faulty unit to E+E for service
Bit 4 Error: Open loop of moisture sensing element
or heavy pollution
1. Clean sensing head acc. to cleaning instructions
2. Return the faulty unit to E+E for service
Bit 5 Warning: Polluted moisture sensing element or
highly conductive oil
Clean sensing head or oil is incompatible
Bit 6 Warning: Temperature below allowed working range Observe the lower working range limit
Bit 7 Warning: Temperature above allowed working range Observe the upper working range limit
Bit 8 Error: T sensing element defective
Return the faulty unit to E+E for service
Bit 9 Warning: Moisture below allowed working range Observe the lower working range limit
Bit 10 Warning: Moisture above allowed working range Observe the upper working range limit
Bit 11 Error: Moisture sensing element defective Return the faulty unit to E+E for service
Bit 12 Error: Hardware moisture sensing Return the faulty unit to E+E for service