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--- message_matching [2020/05/13 18:44]
wikiadmin
+++ message_matching [2020/06/05 16:46] (current)
wikiadmin
@@ Line 60: / Line 60: @@
 Somewhat common is to rely on the order of the message matching in TransSECS to match a "default" message after all more-precise messages have been matched.  Messages are ordered either by stream/function/alphabetical or alphabetically.  In this case, create a message that starts with a Z_ and it will be moved to the last element of the matched list and so matched last.
+**Type Length and Fixed Length**
+The "Type Length"/"Fixed Length" property are not strictly part of the message matching logic.  These properties apply only to values being sent. If "Type Length" is unchecked, then the value will be sent with the length provided in the "Fixed Length" box.  Two common uses are old tools that require string fields to be padded to some length and sending zero-length values -particularly IDs.
 **Remote Command Messages**
@@ Line 73: / Line 78: @@
 If the "Send Err Msg" box is checked, if the "Key" field matches, or there is no "Key" field but the rest of the match fails, TransSECS will automatically return an S2F42 with an error description.  If there is only one message with a given "Key" the "Send Err Msg" button should be checked on that message.  If there are multiple messages with the same Key, the last message in the tree should have the "Send Err Msg" checked.  It's also possible to add "Default" S2F41 messages that do not have a key to force particular errors.  Make sure that they are the last S2F41 message and that the "Send Err Msg" box is checked.
+Ensure that the "Remote Command" and "Send Err Msg" check boxes are checked for your S2F41 and S2F49 message.
+{{:pasted:20200605-162857.png}}
+These checkboxes will only be available for valid S2F41/F49 messages.  If you message is an S2F41 or S2F49 and these options are not available, check that the format of the messages is valid.
+The first check is that the command is valid.  For example, in this case, there are no S2F41 messages matching "START1".
+<file>
+S2F41 W <L[2]
+  <A 'START1'>
+  <L[1]
+    <L[2]
+      <A 'PPID'>
+      <A 'something'>
+    >
+  >
+>  .
+RECEIVED: 2020.06.05 15:24:33.386
+S2F42 <L[2]
+  <B 0x1> /* Decimal[1]: 1 */
+  <L[0]
+  >
+>  .
+</file>
+Next the CPName/CPVal pairs are checked
+<file>
+SENT: 2020.06.05 15:27:31.854
+S2F41 W <L[2]
+  <A 'START'>
+  <L[1]
+    <L[2]
+      <A 'PPID1'>
+      <A 'something'>
+    >
+  >
+>  .
+RECEIVED: 2020.06.05 15:27:36.589
+S2F42 <L[2]
+  <B 0x3> /* Decimal[1]: 3 */
+  <L[2]
+    <L[2]
+      <A 'PPID1'>
+      <B 0x1> /* Decimal[1]: 1 */
+    >
+    <L[2]
+      <A 'PPID'>
+      <B 0x4> /* Decimal[1]: 4 */
+    >
+  >
+>  .
+</file>
+This error indicates that the CPName "PPID1" was found in the message from the host but not in any message at the tool and that the CPName "PPID" was expected and not found in the message from the host.
+The order of the CPName/CPVal lists is unimportant.  TransSECS will match them in any order:
+<file>
+SENT: 2020.06.05 15:40:56.908
+S2F41 W <L[2]
+  <A 'PP-SELECT'>
+  <L[2]
+    <L[2]
+      <A 'PPID'>
+      <A 'RecipeName'>
+    >
+    <L[2]
+      <A 'LOTID'>
+      <A 'LOTIDxxxxxx'>
+    >
+  >
+>  .
+RECEIVED: 2020.06.05 15:40:56.918
+S2F42 <L[2]
+  <B 0x0> /* Decimal[1]: 0 */
+  <L[0]
+  >
+>  .
+SENT: 2020.06.05 15:41:01.292
+S2F41 W <L[2]
+  <A 'PP-SELECT'>
+  <L[2]
+    <L[2]
+      <A 'LOTID'>
+      <A 'LOTIDxxxxxx'>
+    >
+    <L[2]
+      <A 'PPID'>
+      <A 'RecipeName'>
+    >
+  >
+>  .
+RECEIVED: 2020.06.05 15:41:01.307
+S2F42 <L[2]
+  <B 0x0> /* Decimal[1]: 0 */
+  <L[0]
+  >
+>  .
+</file>
 **Advanced Message Matching**