Owner's manual
Table Of Contents
- Title Page
- Table of Contents
- 1. Introduction
- 2. Message Summary
- 3. Operating Characteristics
- 4. SECS Message Detail
- 4.1 SML Notation
- 4.2 SECS Messages
- S1F1 - Are You There
- S1F2 - On Line Data (Equipment to Host)
- S1F2 - On Line Data (Host to Equipment)
- S1F3 - Selected Status Request
- S1F4 - Selected Status Data
- S1F11 - Status Variable Namelist Request
- S1F12 - Status Variable Namelist Reply
- S1F13 - Connect Request
- S1F14 - Connect Request Acknowledge
- S1F15 - Request Off-Line
- S1F16 - Off-Line Acknowledge
- S1F17 - Request On-Line
- S1F18 - On-Line Acknowledge
- S1F65 - Connect Request
- S1F66 - Connect Request Acknowledge
- S2F13 - Equipment Constant Request
- S2F14 - Equipment Constant Data
- S2F15 - New Equipment Constant Send
- S2F16 - Equipment Constant Send Acknowledge
- S2F17 - Date and Time Request
- S2F18 - Date and Time Data
- S2F23 - Trace Initialize Send
- S2F24 - Trace Initialize Acknowledge
- S2F25 - Diagnostic Loopback Request
- S2F26 - Diagnostic Loopback Data
- S2F27 - Initiate Process Request
- S2F28 - Initiate Process Acknowledge
- S2F29 - Equipment Constant Namelist Request
- S2F30 - Equipment Constant Namelist Reply
- S2F31 - Date and Time Send
- S2F32 - Date and Time Acknowledge
- S2F33 - Define Report
- S2F34 - Define Report Acknowledge
- S2F35 - Link Event Report
- S2F36 - Link Event Report Acknowledge
- S2F37 - Enable/Disable Event Report
- S2F38 - Enable/Disable Event Report Acknowledge
- S2F39 - Multi-Block Inquire
- S2F40 - Multi-Block Grant
- S2F41 - Remote Command with Parameters
- S2F42 - Remote Command Acknowledge
- S2F43 - Reset Spooling Streams and Functions
- S2F44 - Reset Spooling Acknowledge
- S2F45 - Define Variable Limits Attributes
- S2F46 - Variable Limit Attribute Acknowledge
- S2F47 - Variable Limit Attribute Request
- S2F48 - Variable Limit Attributes Send
- S5F1 - Alarm Report
- S5F2 - Alarm Acknowledge
- S5F3 - Enable/Disable Alarm Send
- S5F4 - Enable/Disable Alarm Acknowledge
- S5F5 - List Alarms Request
- S5F6 - List Alarm Data
- S5F7 - List Enabled Alarms Request
- S5F8 - List Enabled Alarm Data
- S5F71 - Alarm Report Block Send
- S5F72 - Alarm Report Block Acknowledge
- S5F73 - Alarm Report Block Acknowledge
- S5F74 - Alarm Notification Acknowledge
- S6F1 - Trace Data Send
- S6F2 - Trace Data Acknowledge
- S6F3 - Annotated Event Report
- S6F4 - Annotated Event Report Acknowledge
- S6F5 - Multi-Block Data Send Inquire
- S6F6 - Multi-Block Grant
- S6F9 - Event Report
- S6F10 - Event Report Acknowledge
- S6F11 - Event Report Send
- S6F12 - Event Report Acknowledge
- S6F13 - Annotated Event Report Send
- S6F14 - Annotated Event Report Acknowledge
- S6F15 - Event Report Request
- S6F16 - Event Report Data
- S6F17 - Annotated Event Report Request
- S6F18 - Annotated Event Report Data
- S6F19 - Request Report Request
- S6F20 - Request Report Data
- S6F21 - Request Annotated Report Request
- S6F22 - Request Annotated Report Data
- S6F23 - Request Spooled Data
- S6F24 - Request Spooled Data Acknowledge
- S7F1 - Process Program Load Inquire
- S7F2 - Process Program Load Grant
- S7F3 - Process Program Send
- S7F4 - Process Program Acknowledge
- S7F5 - Process Program Request
- S7F6 - Process Program Data
- S7F17 - Process Program Delete
- S7F18 - Process Program Delete Acknowledge
- S7F19 - Process Program Directory Request
- S7F20 - Process Program Directory
- S9F1 - Unrecognized Device ID
- S9F3 - Unrecognized Stream
- S9F5 - Unrecognized Function
- S9F7 Invalid Data
- S9F9 Transaction Timer Timeout
- S9F11 - Data Too Long
- S10F1 - Terminal Request
- S10F2 - Terminal Request Acknowledge
- S10F3 - Terminal Display, Single
- S10F4 - Terminal Display Single Acknowledge
- S10F5 - Terminal Display, Multiblock
- S10F6 - Terminal Display Multiblock Acknowledge
- S10F9 - Broadcast
- S10F10 - Broadcast Acknowledge
- 5. SECS Scenarios
- 5.1 Equipment Communications
- Equipment Establishes Communications
- Host Establishes Communications
- Simultaneous Establish Communications
- Losing Connection, Re-Connecting
- Heartbeat
- Host Initializes Event Reporting
- Equipment Reports Event
- Equipment Reports Annotated Event
- Host Initiates Trace
- Host Terminates Trace
- Host Requests Status
- Host Defines Limits
- Host Queries Defined Limits
- Host Requests Report by CEID
- Host Requests Annotated Report by CEID
- Host Requests Report by RPTID
- Host Requests Annotated Report by RPTID
- Are You There
- Host Reads Equipment Constants
- Host Sets Equipment Constants
- 5.2 Data Collection
- 5.3 Alarms
- 5.4 Control State
- 5.5 Process Program Management
- 5.6 Equipment Terminal Communications
- 5.7 SECS Error Messages
- 5.8 Clock
- 5.9 Spooling
- 5.1 Equipment Communications
- 6. Machine Variable Definitions
- 7. Host-to-Equipment Messages
- 8. Equipment-to-Host Messages
- Appendixes
- Glossary

Equipment-to-Host Messages 2-1
2. Message Summary
This section covers the primary SECS messages sent and received between the Host and the Equipment.
2.1 Host-to-Equipment Messages
Table 2-1 describes primary SECS messages sent by the Host, and the associated reply messages from the
Equipment.
The CState column indicates the control state the Equipment must be in to accept the message. The
current value of the Equipment Control State can be found in variable CONTROLSTATE (VID 4).
Possible control state values for this column are listed in Table 2-2.
Unlawful messages sent to the Equipment while Control State is Off-Line (1, 2, or 3) will be replied to
with a SnF0 message. Thus, the Host will see only values of 4 or 5 for CONTROLSTATE.
Refer to Table 7-1 for further message detail.
In the Notes column, those messages marked with “E” are extensions beyond GEM. Those messages
marked with “N” are provided for non-GEM or older GEM compatibility.
Table 2-1 SECS Messages – Host-to-Equipment
Primary Reply CState Description Notes
S1F1 S1F2 4,5 Are You There
S1F3 S1F4 4,5 Selected Status
S1F11 S1F12 4,5 Status Variable Namelist Request
S1F13 S1F14 All Connect Request
S1F15 S1F16 4,5 Request Off-Line
S1F17 S1F18 1,2,3 Request On-Line
S1F65 S1F66 All Connect Request N
S2F13 S2F14 4,5 Equipment Constant Request
S2F15 S2F16 4,5 New Equipment Constant Send
S2F17 S2F18 4,5 Date and Time Request
S2F21 S2F22 5 Remote Command N
S2F23 S2F24 4,5 Trace Initialize
S2F25 S2F26 4,5 Loopback Diagnostic E
S2F27 S2F28 5 Initiate Processing Request N
S2F29 S2F30 4,5 Equipment Constant Namelist Request E
S2F31 S2F32 4,5 Date and Time Send
S2F33 S2F34 4,5 Define Report