Added utility programs which update motor subsitutions files from

the values read rom the actual controller

utils/syncPmacSub.py

@@ -0,0 +1,101 @@
+#!/usr/bin/env python3
+"""
+This little program synchronizes an EPICS substitutions file with values read
+from the delta tau motor controller. Some research showed that the  EPICS motorRecord
+seems to have no means of reading configuration data like limits or speeds or such
+from the device support. Than it is the easiest to read the data with this small 
+program and update the substitutions file with it.
+
+Mark Koennecke, January 2023
+"""
+
+import socket
+import sys
+from deltatau import packPmacCommand,  readPmacReply 
+
+
+socke = None
+
+# --------------- communication section
+def connect(host, port):
+    global socke, sockfd
+    socke = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    # socke.connect(('localhost', 5050))
+    socke.connect((host, port))
+    socke.settimeout(1.)
+
+def transact(command):
+    global socke
+    data = packPmacCommand(command)
+    socke.send(data)
+    reply = readPmacReply(socke)
+    return reply.decode('utf-8')
+
+def find_commas(rawline):
+    comma_list = []
+    for i in range(len(rawline)):
+        if rawline[i] == ',':
+            comma_list.append(i)
+    return comma_list
+
+def pretty_line(newlist, comma_list):
+    """
+    adds spaces to match the tabbing of the patter line
+    """
+    newline = ''
+    for item, idx in zip(newlist, comma_list):
+        length = len(newline) + 1 + len(item)
+        if length < idx:
+            newline += ' ' * (idx - length)
+        newline += item
+        newline += ','
+    newline += newlist[-1]
+    return newline[0:-1]
+
+def fix_line(par_list, index_list):
+    # import pdb; pdb.set_trace()
+    addridx = index_list.index('ADDR')
+    motNo = int(par_list[addridx])
+    lowlim = transact('Q%d14' % motNo)
+    lowidx = index_list.index('DLLM')
+    par_list[lowidx] = lowlim.strip()
+    highlim = transact('Q%d13' % motNo)
+    highidx = index_list.index('DHLM')
+    par_list[highidx] = highlim.strip()
+    return par_list
+
+def scan_substitution_file(filename):
+    index_list = None
+    # import pdb; pdb.set_trace()
+    with open(filename, 'r') as fin:
+        rawline = fin.readline()
+        while rawline:
+            line = rawline.replace(' ','')
+            line = line.strip('{}')
+            l = line.split(',')
+            if line.find('DHLM') > 0:
+                index_list = l
+                comma_list = find_commas(rawline)
+                sys.stdout.write(rawline)
+            elif  not index_list:
+                sys.stdout.write(rawline)
+            else:
+                if len(l) == len(index_list):
+                    newlist = fix_line(l, index_list)
+                    # newline =  ','.join(newlist)
+                    newline = pretty_line(newlist, comma_list)
+                    sys.stdout.write('{' + newline + '\n')
+                else:
+                    sys.stdout.write(rawline)
+            rawline = fin.readline()
+
+#------------------ main
+if len(sys.argv) < 4:
+    print('Usage:\n\tsyncPmacSub.py <host> <port> <substitutions-file>\n')
+    sys.exit(1)
+
+connect(sys.argv[1], int(sys.argv[2]))
+scan_substitution_file(sys.argv[3])
+socke.close()
+
+