Specifications

STB NIP 2311 Services
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Reading Diagnostic Data
Summary
The 35 contiguous registers (45357 through 45391) in the island bus data image
(see page 238) are reserved for diagnostic data for the Advantys STB system. The
diagnostic registers have pre-defined meanings that are described below.
Master Devices
The diagnostic registers can be monitored by a Modbus over TCP/IP host or the
STB NIP 2311 embedded web server. The master devices use Modbus messaging
to read and write diagnostic data to specific registers in the diagnostic block of the
process image.
NOTE: An HMI panel or a device running the Advantys Configuration Software can
also exchange data with an island through the CFG port (see page 33) on the
STB NIP 2311.
Island Communications Status
Status information about the state of communications across the island bus is stored
in register 45357. The bits in the low byte (bits 7 through 0) use 15 different patterns
to indicate the island’s current communications state. Each bit in the high byte
(bits 15 through 8) indicates the presence or absence of a specific condition:
1 The island is initializing.
2 The island has been set to pre-operational mode, for example, by the reset function.
3 The STB NIP 2311 is configuring or auto-configuring: Communication to all modules is
reset.