Communications between the Optical Support Subsystem (OSS) LIC and the GIC consists of one tag, an array of 128 BOOL values for various logic values (see below).
OSS to GIC bit assignments
OSS_to_GIC is a user-defined type SAFETY_ARRAY which consists of the the safety connection status and an array of 128 BOOL. Assignments are listed below:
Tag Name | Data Type | Description |
OSS_to_GIC | UDT_SafetyArray |
|
OSS_to_GIC.Connection_Status | CONNECTION_STATUS |
|
OSS_to_GIC.Data[0] | BOOL | Telescope Mount Emergency Stop OK |
OSS_to_GIC.Data[1] | BOOL | Telescope Mount PLC I/O OK (LEDstatus=3) |
OSS_to_GIC.Data[2] | BOOL | reserved |
OSS_to_GIC.Data[3] | BOOL | reserved |
OSS_to_GIC.Data[4] | BOOL | reserved |
OSS_to_GIC.Data[5] | BOOL | reserved |
OSS_to_GIC.Data[6] | BOOL | reserved |
OSS_to_GIC.Data[7] | BOOL | reserved |
OSS_to_GIC.Data[8] | BOOL | OSS on sun |
OSS_to_GIC.Data[9] | BOOL | reserved |
OSS_to_GIC.Data[10] | BOOL | reserved |
OSS_to_GIC.Data[11] | BOOL | reserved |
OSS_to_GIC.Data[12] | BOOL | reserved |
OSS_to_GIC.Data[13] | BOOL | reserved |
OSS_to_GIC.Data[14] | BOOL | reserved |
OSS_to_GIC.Data[15] | BOOL | reserved |
OSS_to_GIC.Data[16] | BOOL | Heat Stop Safety Shutter Open |
OSS_to_GIC.Data[17] | BOOL | Heat Stop Safety Shutter Closed |
OSS_to_GIC.Data[18] | BOOL | Heat Stop Safety Shutter Permissive |
OSS_to_GIC.Data[19] | BOOL | Heat Stop Safety Temperature OK |
OSS_to_GIC.Data[20] | BOOL | Heat Stop Safety Pressure OK |
OSS_to_GIC.Data[21] | BOOL | reserved |
OSS_to_GIC.Data[22] | BOOL | reserved |
OSS_to_GIC.Data[23] | BOOL | reserved |
OSS_to_GIC.Data[24] | BOOL | Heat Stop Installed |
OSS_to_GIC.Data[25] | BOOL | M2 Installed |
OSS_to_GIC.Data[26] | BOOL | reserved |
OSS_to_GIC.Data[27] | BOOL | reserved |
OSS_to_GIC.Data[28] | BOOL | reserved |
OSS_to_GIC.Data[29] | BOOL | reserved |
OSS_to_GIC.Data[30] | BOOL | reserved |
OSS_to_GIC.Data[31] | BOOL | reserved |
OSS_to_GIC.Data[32] | BOOL | M5 Temperature OK |
OSS_to_GIC.Data[33] | BOOL | Heat Stop Fuse Wire OK |
OSS_to_GIC.Data[34] | BOOL | GOS small FOV selected |
OSS_to_GIC.Data[35] | BOOL | reserved |
OSS_to_GIC.Data[36] | BOOL | reserved |
OSS_to_GIC.Data[37] | BOOL | reserved |
OSS_to_GIC.Data[38] | BOOL | reserved |
OSS_to_GIC.Data[39] | BOOL | reserved |
OSS_to_GIC.Data[40] | BOOL | reserved |
OSS_to_GIC.Data[41] | BOOL | reserved |
OSS_to_GIC.Data[42] | BOOL | reserved |
OSS_to_GIC.Data[43] | BOOL | reserved |
OSS_to_GIC.Data[44] | BOOL | reserved |
OSS_to_GIC.Data[41]-->[127] | BOOL | not used |