GetRightBusStatus: Returns the Status of the Expansion Bus
This function returns the I/O Expansion Bus status in a bit field. Following the input parameter (Mask), the function returns a configuration diagnostic on the I/O expansion bus (I/O expansion bus configuration mismatch with plugged modules) or a detailed diagnostic of the requested expansion analog I/O module.
To see the general representation in IL or ST language, refer to the chapter Function and Function Block Representation.
The following table describes the input parameter:
|
Input |
Type |
Comment |
|---|---|---|
|
Mask |
Defines the type of I/O expansion bus diagnostic returned by the function: bus configuration or one of the 7 possible expansion modules. NOTE: 16 I/O and 24 I/O controllers support a maximum of 4 expansion modules. |
The following table describes the output variable:
|
Output |
Type |
Comment |
|---|---|---|
|
GetRightBusStatus |
WORD |
I/O expansion bus diagnostic. see details below |
I/O Expansion Bus Configuration Diagnostic
The table below describes the bit field returned by the function GetRightBusStatus when the input parameter (Mask) is RIGHT_BUS_GET_GEN_STATUS for a configuration diagnostic of the expansion bus (0000 hex if no detected error):
|
Bit |
Description |
|---|---|
|
0 |
Reserved (always 0) |
|
1 |
TRUE if the TM2/TM2...N module 1 configuration mismatches with plugged module. |
|
2 |
TRUE if the TM2/TM2...N module 2 configuration mismatches with plugged module. |
|
3 |
TRUE if the TM2/TM2...N module 3 configuration mismatches with plugged module. |
|
4 |
TRUE if the TM2/TM2...N module 4 configuration mismatches with plugged module. |
|
5 |
TRUE if the TM2/TM2...N module 5 configuration mismatches with plugged module. |
|
6 |
TRUE if the TM2/TM2...N module 6 configuration mismatches with plugged module. |
|
7 |
TRUE if the TM2/TM2...N module 7 configuration mismatches with plugged module. |
|
8 |
TRUE if the right bus is blocked. |
|
7...15 |
Reserved (always 0) |
NOTE: Bits 5 to 7 do not apply to 16 I/O and 24 I/O controllers.
TM2...N Analog I/O Expansion Module Diagnostic
The table below describes the bit field returned by the function GetRightBusStatus when the input parameter (Mask) is RIGHTBUS_GET_STATUSx (where x=1 to 7) for a detailed diagnostic of the expansion module "x":
oTM2AMI2HTN
oTM2AMI4HTN
oTM2AMO2HTN
|
Bit |
Description |
Meaning |
|---|---|---|
|
0 |
5 V power supply of an analog input expansion module |
0: Power supply is normal 1: No power |
|
1 |
5 V power supply of an analog output expansion module |
0: Power supply is normal 1: No power |
|
2 |
+15 V power supply of an analog output expansion module |
0: Power supply is normal 1: No power |
|
3 |
Output of channel 0 of an output expansion module |
0: No error detected 1: Error detected |
|
4 |
Output of channel 1 of an output expansion module |
0: No error detected 1: Error detected |
|
5 |
Analog output channel 1 |
0: Within range 1: Out of range |
|
6 |
Analog output channel 2 |
0: Within range 1: Out of range |
|
7 |
Reserved |
|
TM2 Analog I/O Expansion Module Diagnostic
The tables below describe the bit field returned by the function GetRightBusStatus when the input parameter (Mask) is RIGHTBUS_GET_STATUSx (where x=1 to 7) for a detailed diagnostic of the expansion module "x".
NOTE: The detailed diagnostic is valid for analog I/O modules only and the bit field meaning depends on the type of the concerned analog module.
When the associated module is a standard analog I/O module (up to 2 input channels):
oTM2AMM3HT
oTM2ALM3LT
oTM2AMI2HT
oTM2AMI2LT
oTM2AVO2HT
oTM2AMO1HT
|
Bit |
Description |
|---|---|
|
0 |
All analog channels in normal state |
|
1 |
Module in initialization state |
|
2 |
Power supply not operating correctly |
|
3 |
Incorrect configuration - analysis needed |
|
4 |
Conversion process for input channel 0 |
|
5 |
Conversion process for input channel 1 |
|
6 |
Invalid parameter for input channel 0 |
|
7 |
Invalid parameter for input channel 1 |
|
8 |
Not used |
|
9 |
Not used |
|
10 |
Overflow value for input channel 0 |
|
11 |
Overflow value for input channel 1 |
|
12 |
Underflow value for input channel 0 |
|
13 |
Underflow value for input channel 1 |
|
14 |
Not used |
|
15 |
Invalid parameter for output channel |
When the associated module is one of the 4 or 8 analog input channels modules:
oTM2ARI8HT
oTM2AMI8HT
oTM2ARI8LT
oTM2ARI8LRJ
oTM2AMI4LT
oTM2AMM6HT
|
Bit |
Description |
Meaning |
|---|---|---|
|
0, 1 |
Channel 0 state |
00: Analog channel in normal state 01: Invalid parameter for input channel 10: Unavailable input value (module in initialization state, conversion process) 11: Invalid value for input channel (overflow or underflow value) |
|
2, 3 |
Channel 1 state |
see bit 0, 1 |
|
4, 5 |
Channel 2 state |
see bit 0, 1 |
|
6, 7 |
Channel 3 state |
see bit 0, 1 |
|
8, 9 |
Channel 4 state |
see bit 0, 1 (for 8 input channels modules only) |
|
10, 11 |
Channel 5 state |
see bit 0, 1 (for 8 input channels modules only) |
|
12, 13 |
Channel 6 state |
see bit 0, 1 (for 8 input channels modules only) |
|
14, 15 |
Channel 7 state |
see bit 0, 1 (for 8 input channels modules only) |
The following example describes a method using GetRightBusStatus for I/O expansion bus and analog modules diagnostic:
VAR
(*Modules 1 to 7 conf diag = MyRightBusStatus bits 1 to 7*)
MyRightBusStatus: WORD;
(*Modules 1 to 7 diag codes*)
ModuleError:Array [1..7] of WORD;
END_VAR
(*Conf diagnostic on expansion bus*)
MyRightBusStatus:=GetRightBusStatus
(RIGHTBUS_GET_GEN_STATUS);
IF MyRightBusStatus<>0 THEN
(*Conf mismatch detected => set an alarm, check bit values...*)
END_IF;
(*Get modules diagnostic; detected error if diag <> 0*)
(*Limit the list to analog modules configured only*)
ModuleError[1]:=GetRightBusStatus(RIGHTBUS_GET_STATUS1);
ModuleError[2]:=GetRightBusStatus(RIGHTBUS_GET_STATUS2);
ModuleError[3]:=GetRightBusStatus(RIGHTBUS_GET_STATUS3);
ModuleError[4]:=GetRightBusStatus(RIGHTBUS_GET_STATUS4);
ModuleError[5]:=GetRightBusStatus(RIGHTBUS_GET_STATUS5);
ModuleError[6]:=GetRightBusStatus(RIGHTBUS_GET_STATUS6);
ModuleError[7]:=GetRightBusStatus(RIGHTBUS_GET_STATUS7);
