Filter
Top Products
Reference Manual
00809-0100-4832, Rev AA
October 2004
3-21
Rosemount 3095FC
Figure 3-15. Soft Point Screen
Opcode Opcode (operation code) is an instruction from a host system that informs a
slave device what actions to take. Table 3-1 contains a summary and brief
description of each Opcode. In some cases the number of data bytes returned
for an Opcode varies. For example, Opcode 0, a full update, always returns
certain input/output (I/O) information along with optionally specified data.
Table 3-1. Summary of
Opcodes
Opcode Description
0 Send general update such as I/O update, gas flows, and control loop status.
6 Send device configuration with 20 data bytes defining device configuration.
7 Send current time and date
8 Set new time and date
10 Send data from configurable Opcode tables.
11 Set data in configuration Opcode tables
17 Set operator identification
18 Log event.
24 Store and forward
80 Reserved
103 Send system information such as on/off times, manual/alarm status, firmware
version, and current time and date.
105 Send history point definition, min/max data, and current values for specified history
point.
107 Send tag and current history period for specified history points.
120 Send pointer for alarm, even, and history logs
121 Send specified number of alarms starting at specified alarm pointer
122 Send specified number of events starting at specified event pointer
123 Read user template data
124 Read user Program Memory Allocation Information
126 Send last 60 minutes of data for specified history point.
128 Send archived daily and hourly data for the currently selected day and month
130 Send archived hourly and daily data for specified history point starting at specified
history pointer
131 Send specified number of event sequence numbers starting at specified pointer
(1)
132 Clear specified number of event sequence number starting at specified pointer
(1)
133 Send number of writable events
(1)
148 Reads 240 bytes of data from a specified judgment: offset address
149 Reserved
160 Sends the entire structure for a specified Function Sequence Table (FST)