Modbus TCP
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54
10.3 Modbus Registers
NOTE
For the register mapping of the different Modbus addressing methods see
(siehe page 55).
Address (hex.) Access
ro = read only
rw = read/
write
Description
0x0000 to 0x01FF ro Packed process data of outputs (process data length of
devices, see Data Width of the I/O-Modules in the
Modbus-Register Area, page 56
)
0x0800 to 0x09FF rw Packed process data of outputs (process data length of
devices, see Data Width of the I/O-Modules in the
Modbus-Register Area, page 56)
0x1000 to 0x1006 ro Station Identifier
0x100C ro Stations-Status (siehe
page 61)
0x1012 ro Process image length in bit for the digital
output modules
0x1013 ro Process image length in bit for the digital
input modules
0x1017 ro Register mapping revision
Register mapping revision (always 1, if not, mapping is
incompatible with this description)
0x1020 ro Watchdog, actual time [ms]
0x1120 rw Watchdog predefined time [ms] (default: 0)
see Error Behavior (Watchdog), page 64
0x1130 rw Modbus connection mode register (siehe page 62)
0x1131 rw Modbus connection timeout in sec. (default: 0 = never)
(siehe
page 62)
0x113C to 0x113D rw Modbus Parameter Restore (siehe page 63)
(reset of parameters to default values)
0x113E to 0x113F rw Modbus Parameter Save (siehe
page 63)
(permanent storing of parameters)
0x1140 rw Deactivate protocol
Deactivates explicitly the selected Ethernet-protocol:
Bit 0 = EtherNet/IP™
Bit 1 = Modbus TCP
Bit 2 = PROFINET
Bit 15 = web server
0x1141 ro Active protocol
Bit 0 = EtherNet/IP™
Bit 1 = Modbus TCP
Bit 2 = PROFINET
Bit 15 = web server
0x1150 rw LED behavior (PWR) at V2 undervoltage
Bit 0:
0 = red
1 = green blinking