Control Data Memory Area

System Memory

The configuration data and position data are stored in this memory. For access this area, the FREAD/FWRITE instructions must be used in sequence program.

System memory is backed-up by flash memory. Current data of system memory is stored in flash memory by issuing a command with instruction. The number of flash memory writing is restricted to 25 times at every power ON. This restriction is putted for protecting flash memory from the sequence program mistake. The overall lifetime of flash memory is 100,000 times of writing.

Buffer Memory

All the special purposed modules of CIMON PLC have buffer memory. Sequence program of CPU can get or control the module’s useful information through this memory. For this data exchange the FROM/TO instructions are used for data exchange between CPU and the module.
PSnnX provides two kinds of data through the buffer memory. One is a monitor data, and the other is a control data. These two data are explained more precisely as follows.

Monitor Data

Monitor data provides some useful information about the running status of PSnnX module. These data are read-only. Following table shows the data can be monitored.

OFFSET				Description
Axis 1	Axis 2	Axis 3	Axis 4	Description
0	15	30	45	M Code
1	16	31	46	External Input Status
2	17	32	47	Running Status 1
3	18	33	48	Running Status 2
4	19	34	49	Destination Position Address (Low word)
5	20	35	50	Destination Position Address (High word)
6	21	36	51	Current Position Address (Low word)
7	22	37	52	Current Position Address (High word)
8	23	38	53	Machine Address (Low word)
9	24	39	54	Machine Address (High word)
10	25	40	55	Target Speed (Low word)
11	26	41	56	Target Speed (High word)
12	27	42	57	Current Speed (Low word)
13	28	43	58	Current Speed (High word)
14	29	44	59	Position Data Number
60				Flash Write Counter
61				Reserved
62				Reserved
63				OS Version
64	66	68	70	Warn Code
65	67	69	71	Error Code

Control Data

This memory area is used for controlling the PSnnX module. Before issuing a instruction, the related data have to be set properly.

OFFSET				Description
Axis 1	Axis 2	Axis 3	Axis 4	Description
72	117	162	207	Position Data Number (1 – 600)
73	118	163	208	Reserved
74	119	164	209	Axis Error Reset
75	120	165	210	Resume Request
76	121	166	211	M code OFF Request
77	122	167	212	External Signal Enable(1) / Disable(0)
78	123	168	213	New Position Address (Low word)
79	124	169	214	New Position Address (High word)
80	125	170	215	Reserved
81	126	171	216	Reserved
82	127	172	217	Reserved
83	128	173	218	Reserved
84	129	174	219	Reserved
85	130	175	220	Reserved
86	131	176	221	New Speed (Low word)
87	132	177	222	New Speed (High word)
88	133	178	223	Speed Change Request (1)
89	134	179	224	Inching Movement Amount
90	135	180	225	JOG Speed (Low word)
91	136	181	226	JOG Speed (High word)
92	137	182	227	OPR Request Flag Reset
93	138	183	228	MPG Multiplier
94	139	184	229	MPG Operation Enable (1) / Disable (0)
95	140	185	230	Reserved
96	141	186	231	Reserved
97	142	187	232	Reserved
98	143	188	233	Reserved
99	144	189	234	Reserved
100	145	190	235	Reserved
101	146	191	236	Target Position Address (Low word)
102	147	192	237	Target Position Address (High word)
103	148	193	238	Target Speed (Low word)
104	149	194	239	Target Speed (High word)
105	150	195	240	Target Address Change Request (1)
106	151	196	241	Simultaneous Start Position Data Number (Axis 1)
107	152	197	242	Simultaneous Start Position Data Number (Axis 2)
108	153	198	243	Simultaneous Start Position Data Number (Axis 3)
109	154	199	244	Simultaneous Start Position Data Number (Axis 4)
110	155	200	245	Step Operation Method
111	156	201	246	Step Operation Enable (1) / Disable (0)
112	157	202	247	Step Operation Command
113	158	203	248	Skip Request (1)
114	159	204	249	Teaching Data
115	160	205	250	Teaching Position Data Number
116	161	206	251	ABS Direction (only for unit of degree)
252				Reserved
253				Reserved
254				Flash Write Request (1)
255				Initialize to Factory Default (1)