Funk-Electronic Piciorgros GmbH
RTU-810
V2.30 - Page 108 of 126
6.1.1
Accessing I/Os using the MODBUS Protocol
The RTU-810 can be accessed remotely over the radio network or locally through its
serial or Ethernet interface.
The Piciorgros radio protocol MoP/Mop2 is using exactly the same register addresses as
MODBUS.
The I/O ports, the virtual PicoLogo input/output registers as well as other information of
the TMO can be accessed using the following 16 Bit registers (e.g. using the Modbus
RTU-Protocol)
Register
Assignment
0
1 (High Byte)
1 (Low Byte)
2- ….
Own Device ID (address)
Field strength of latest received radio telegram in –dBm.
A value of 90 means i.e. that the data was received with -90dBm by
the radio transmitting device.
If the RTU-810 is set to RTU-710 compatibility mode, this will be
an uncalibrated percentage value instead where 100% is the best
reception.
Device status as follows:
Bit 7: Will be set on device restart. The bit can be cleared if
the status register is written with a value where bit 7 is set.
Bit 6: A set bit means that an I/O-error has occurred. This
can be a failed or removed expansion module or a non-
matching I/O monitoring value.
The bit can be cleared if the status register is written with a
value where bit 6 is set. If the error still exists, the bit will
not reset to 0
Bit 5: The time sync source for timeslot operation mode is
working when this bit is set
Bit 3: Is set if the system time is valid
Bit 2: Is set on a properly operating device
Bit 1: If this bit is set, the radio module is on error
All Input Data and Timer / Counter in packed format:
Digital Inputs
Analog Inputs as 12 Bit values
Counter and Timer
32 virtual PicoLogo input registers
200-231
32 virtual PicoLogo input registers. These can be written by a
PicoLogo application and be read out from the RTU-810 (i.e. by a
SCADA).
232-263
32 virtual PicoLogo output registers. These can be written to the
RTU-810 (i.e. by a SCADA) and can be read out by a PicoLogo
application.
