It works for me on both. For the Power Chart, add an axis, set the tick count to whatever you need, and point the pens axis to it. Here is a view you can shift-right click and paste to see that I have both charts showing 20 ticks on the y-axis.
Chart View
{
"custom": {},
"params": {},
"props": {},
"root": {
"children": [
{
"meta": {
"name": "TimeSeriesChart"
},
"position": {
"basis": "400px"
},
"props": {
"plots": [
{
"axes": [
{
"alignment": "left",
"label": {
"font": {
"color": "",
"size": 10
},
"offset": 0,
"style": {
"classes": ""
},
"text": "",
"visible": true
},
"max": "",
"min": "",
"name": "Axis1",
"style": {
"classes": ""
},
"tick": {
"color": "",
"count": 20,
"label": {
"font": {
"color": "",
"size": 10
},
"format": "Auto",
"style": {
"classes": ""
}
},
"style": {
"classes": ""
}
},
"width": 60
}
],
"markers": [],
"trends": [
{
"axis": "Axis1",
"baselines": [],
"breakLine": true,
"columns": [],
"interpolation": "curveLinear",
"radius": 2,
"series": "Boiler",
"stack": true,
"type": "line",
"visible": true
}
]
}
],
"series": [
{
"data": [
{
"Pressure": 12,
"Temperature": 52,
"time": 1560469431423
},
{
"Pressure": 42,
"Temperature": 18,
"time": 1560469432423
},
{
"Pressure": 81,
"Temperature": 26,
"time": 1560469433423
},
{
"Pressure": 11,
"Temperature": 63,
"time": 1560469434423
},
{
"Pressure": 23,
"Temperature": 65,
"time": 1560469435423
},
{
"Pressure": 43,
"Temperature": 12,
"time": 1560469436423
},
{
"Pressure": 71,
"Temperature": 61,
"time": 1560469437423
},
{
"Pressure": 89,
"Temperature": 60,
"time": 1560469438423
},
{
"Pressure": 66,
"Temperature": 58,
"time": 1560469439423
},
{
"Pressure": 33,
"Temperature": 1,
"time": 1560469440423
}
],
"name": "Boiler"
}
]
},
"type": "ia.chart.timeseries"
},
{
"meta": {
"name": "PowerChart"
},
"position": {
"basis": "600px"
},
"props": {
"axes": [
{
"color": "#757A7F",
"dataFormat": "0,0.##",
"label": {
"font": {
"color": "#757A7F",
"size": 10
},
"offset": 0,
"style": {
"classes": ""
},
"text": ""
},
"name": "Axis1",
"position": "left",
"range": {
"auto": true,
"max": "",
"min": ""
},
"style": {
"classes": ""
},
"tick": {
"color": "#757A7F",
"count": 20,
"label": {
"font": {
"color": "#757A7F",
"size": 10
},
"format": "Auto",
"style": {
"classes": ""
}
},
"style": {
"classes": ""
}
},
"width": 60
}
],
"config": {
"rangeEndDate": {
"$": [
"ts",
0,
1719490809878
],
"$ts": 1719490713703
},
"rangeStartDate": {
"$": [
"ts",
0,
1719490809878
],
"$ts": 1719462009703
}
},
"interaction": {
"chartZoomLevel": 1,
"rangeZoomLevel": 1
},
"pens": [
{
"axis": "Axis1",
"data": {
"aggregateMode": "default",
"source": "histprov:history:/drv:ignition-usws3079:system:/tag:gateway/performance/cpu usage"
},
"display": {
"breakLine": true,
"interpolation": "curveLinear",
"radius": 3,
"styles": {
"highlighted": {
"fill": {
"color": "#63BEA2",
"opacity": 1
},
"stroke": {
"color": "#63BEA2",
"dashArray": 0,
"opacity": 1,
"width": 1
}
},
"muted": {
"fill": {
"color": "#63BEA2",
"opacity": 0.4
},
"stroke": {
"color": "#63BEA2",
"dashArray": 0,
"opacity": 0.4,
"width": 1
}
},
"normal": {
"fill": {
"color": "#63BEA2",
"opacity": 0.8
},
"stroke": {
"color": "#63BEA2",
"dashArray": 0,
"opacity": 0.8,
"width": 1
}
},
"selected": {
"fill": {
"color": "#63BEA2",
"opacity": 1
},
"stroke": {
"color": "#63BEA2",
"dashArray": 0,
"opacity": 1,
"width": 1
}
}
},
"type": "line"
},
"enabled": true,
"name": "cpu usage",
"plot": 0,
"selectable": true,
"visible": true
}
]
},
"type": "ia.chart.powerchart"
}
],
"meta": {
"name": "root"
},
"props": {
"direction": "column"
},
"type": "ia.container.flex"
}
}