TPW MODBUS © SENNET CONTROL GmbH Page 7 of 11
Reserved for UMC channel #0 – future expansion
… and similar up to 128 UMC channels, up to register 8192. For each UMC channel, there is a 64 register area (128 bytes) mapped in the
holding registers, where the data related to it can be accessed.
Section 2: Probes and channels general info
… up to 128 registers (256 bytes) for other probes & UMC channels information – possible future expansion
Section 3: Product info and timekeeping
Firmware date as an 12 character string
Device up time since last reset, in seconds
Total run time since manufacturing, in hours
Last reboot/startup Unix timestamp
Unix timestamp of the next service date
Service interval, in days
… up to 1920 registers (1840 bytes) for product-specific data, time settings, service info, etc
Section 4: Alarm channels
UMC channel associated with the alarm channel
Auto-off:
• lower byte: pre-alarm auto-off
o 0x00: disabled
o 0x01: enabled
• upper byte: main alarm auto-off
o 0x00: disabled
o 0x01: enabled
Pre-alarm lower threshold is enabled?
• 0x00: disabled
• 0x01: enabled
Pre-alarm low limit: lower threshold
Pre-alarm low limit: upper threshold
Pre-alarm upper threshold is enabled?
• 0x00: disabled
0x01: enabled
Pre-alarm upper limit: lower threshold
Pre-alarm upper limit: upper threshold
Main alarm lower threshold is enabled?
• 0x00: disabled
0x01: enabled
Main alarm low limit: lower threshold
Main alarm low limit: upper threshold
Main alarm upper threshold is enabled?
• 0x00: disabled
0x01: enabled
Main alarm upper limit: lower threshold
Main alarm upper limit: upper threshold
Pre-alarm active?
• 0x00: not active
• 0x01: active low
• 0x02: active high